REFERENCE KEY


01 ANGEL,J.R.P.1978,ANN.REV.ASTR.AP.,16,487.
02 ANGEL,J.R.R.,AND LANDSTREET,J.1971,AP.J.(LETTERS),164,L15.
03 ANGEL,J.R.P.,CARSWELL,R.,AND STRITTMATTER,P.A.1974,AP.J.(LETTERS),194,L47.
04 ANGEL,J.R.P.1977,AP.J.,216,1.
05 ANTHONY-TWAROG,B.1984,A.J.,89,267.
06 AUER,L.H.,AUER,K.,HOFFLEIT,E.D.,AND VAN ALTENA,W.F.1978,A.J.,83,640.
07 BEARDSLEY,W.R.,WAGMAN,N.E.,ERSKINE,E.,HUBBELL,E.,AND GATEWOOD,G.1973,
         A.J.,78,95.
08 BESSELL,M.S.,AND WICKRAMASINGHE,D.T.1978,M.N.R.A.S.,182,275.
09 BLANCO,V.M.,DEMERS,S.,DOUGLAS,G.G.,AND FITZGERALD,M.P.1968,PUBL.U.S.NAVAL
         OBS.,SECOND SERIES,21.
10 BOEHM-VITENSE,E.AND JOHNSON,H.R.1985,AP.J.,293,288.
11 BOEHM-VITENSE,E.1980,AP.J.(LETTERS),239,L79.
12 BORGMAN,E.R.1980,PRIVATE COMMUNICATION.
13 BORGMAN,E.R.,AND LIPPINCOTT,S.L.1983,A.J.,88,120.
14 CHROMEY,F.R.1978,A.J.,83,162.
15 CHURMS,J.,AND THACKERAY,A.D.1971,IN IAU SYMPOSIUM NO.42,WHITE DWARFS,
         ED. W.J.LUYTEN,(DORDRECHT: REIDEL),P.21.
16 COTTRELL,P.,AND GREENSTEIN,J.1980,AP.J.,242,195.
17 CUDWORTH,K.M.1977,A.J.,82,516,IN PREPARATION.
18 DAHN,C.C.,HARRINGTON,R.S.,RIEPE,B.Y.,CHRISTY,J.W.,GUETTER,H.H.,
         KALLARAHAL,V.V.,MIRANIAN,M.,WALKER,R.L.,VRBA,F.J.,HEWITT,
         A.V.,DURHAM,W.S.,AND ABLES,H.D.1982,A.J.,87,419.
19 DAHN,C.C.,HARRINGTON,R.S.,RIEPE,B.Y.,CHRISTY,J.W.,GUETTER,H.H.,BEHALL,
         A.L,WALKER,R.L.,HEWITT,A.V.,AND ABLES,H.D.1976,PUB.U.S.NAVAL
         OBS.,SECOND SERIES,24,PART 3.
20 DAHN,C.C,ET.AL.1987,PUB.U.S.NAVAL OBS.,EIGHTH PARALLAX LIST.
21 DOLEZ,N.,VAUCLAIR,G.,AND CHEVRETON,M.1983,ASTR.AP.,121,L23.
22 DOWNES,R.1983,PRIVATE COMMUNICATION.
23 DOWNES,R.1985,AP.J.SUPPL.,61,NO.3.
24 DOWNES,R.,LIEBERT,J.,AND MARGON,B.1985,AP.J.,290,321.
25 DOWNES,R.,AND MARGON,B.1983,PUB.A.S.P.,95,358.
26 DOWNES,R.A.,AND SHIPMAN,H.L.1986,PUB.A.S.P.,98,99.
27 EGGEN,O.J.,AND SANDAGE,A.1967,AP.J.,148,911.
28 EGGEN,O.J.,AND BESSELL,M.S.1978,AP.J.,226,411.
29 EGGEN,O.J.,AND GREENSTEIN,J.L.1965,AP.J.,141,83(PAPER 1).
30 EGGEN,O.J.,AND GREENSTEIN,J.L.1967,AP.J.,150,927(PAPER 3).
31 EGGEN,O.J.,AND GREENSTEIN,J.L.1965,AP.J.,142,925(PAPER 2).
32 EGGEN,O.J.1966,ROY. OBS.BULL.NO.120.
33 EGGEN,O.J.1968,AP.J.SUPPL.,16,97.
34 EGGEN,O.J.1969,AP.J.SUPPL.,19,31.
35 EGGEN,O.J.1968,AP.J.,153,195.
36 EGGEN,O.J.1979,AP.J.SUPPL.,39,89.
37 EGGEN,O.J.1969,AP.J.,157,287.
38 FEIGE,J.1958,AP.J.,128,267.
39 FONTAINE,G.,AND MCGRAW,J.T.1979,PRIVATE COMMUNICATION.
40 FONTAINE,G.,AND WESEMAEL,F.1984,A.J.,89,1728.
41 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1978,LOWELL OBS.BULL.NO.163.
42 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1972,LOWELL OBS.BULL.NO.158.
43 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1975,LOWELL OBS.BULL.NO.162.
44 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1965,LOWELL OBS.BULL.NO.125.
45 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1967,LOWELL OBS.BULL.NO.141.
46 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1974,LOWELL OBS.BULL.NO.161.
47 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1980,LOWELL OBS.BULL.NO.166.
48 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1971,LOWELL PROPER MOTION
         SURVEY,THE G-NUMBERED STARS.
49 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1970,LOWELL OBS.BULL.NO.153.
50 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1961,LOWELL OBS.BULL.NO.112.
51 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1963,LOWELL OBS.BULL.NO.120.
52 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1964,LOWELL OBS.BULL.NO.122.
53 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1964,LOWELL OBS.BULL.NO.124.
54 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1966,LOWELL OBS.BULL.NO.132.
55 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1967,LOWELL OBS.BULL.NO.140.
56 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1969,LOWELL OBS.BULL.NO.150.
57 GICLAS,H.L.,BURNHAM,R.,JR.,AND THOMAS,N.G.1973,LOWELL OBS.BULL.NO.160.
58 GLEISE,W.,AND JAHREISS,H.1979,ASTR.AP.SUPPL.,38,423-448.
59 GLIESE,W.,AND JAHREISS,H.1987,CATALOG OF NEARBY STARS,3D ED.
         IN PREPARATION.
60 GRAHAM,J.A.1972,A.J.,77,144.
61 GRAUER,A.D.,AND BOND,H.E.1984,AP.J.,277,211.
62 GRAUER,A.D.,BOND,H.E.,LIEBERT,J.,GREEN,R.F.,AND FLEMING,T.1986,IN PREPARATION
63 GRAY,D.F.1965,A.J.,70,414.
64 GREEN,R.1977,PH.D.THESIS,CALIF.INST.TECH.,PASADENA.
65 GREEN,R.F.,SCHMIDT,M.,AND LIEBERT,J.1986,AP.J.SUPPL.,61,305.
66 GREEN,R.,AND LIEBERT,J.1981,PUB.A.S.P.,93,105.
67 GREENSTEIN,J.L.1975,AP.J.(LETTERS),196,L117(PAPER 8).
68 GREENSTEIN,J.L.1974,AP.J.(LETTERS),189,L131(PAPER 7).
69 GREENSTEIN,J.L.1986,A.J.,92,859, AND 867(PAPER I AND II).
70 GREENSTEIN,J.L.1969,AP.J.,158,292(PAPER 4).
71 GREENSTEIN,J.L.1970,AP.J.(LETTERS),162,L55(PAPER 6).
72 GREENSTEIN,J.L.,AND TRIMBLE,V.1967,AP.J.,149,283.
73 GREENSTEIN,J.L.,OKE,J.B.,AND RICHSTONE,D.,VAN ALTENA,W.F.,AND
         STEPPE,H.1977,AP.J.(LETTERS),218,L21(PAPER 10).
74 GREENSTEIN,J.L.1979,AP.J.,227,244(PAPER 11).
75 GREENSTEIN,J.L.1976,AP.J.(LETTERS),207,L119(PAPER 9).
76 GREENSTEIN,J.L.1984,AP.J.,276,602.
77 GREENSTEIN,J.L.1980,AP.J.,242,738.
78 GREENSTEIN,J.L.,AND OKE,J.B.1979,AP.J.(LETTERS),229,L141.
79 GREENSTEIN,J.L.1980,AP.J.(LETTERS),241,L89.
80 GREENSTEIN,J.L.,AND MC CARTHY,J.K.1985,AP.J.,289,732.
81 GREENSTEIN,J.L.1986,AP.J.,304,334.
82 GREENSTEIN,J.L.,GUNN,J.,AND KRISTIAN,J.1971,AP.J.(LETTERS),169,L63.
83 GREENSTEIN,J.L.,AND SARGENT,A.1974,AP.J.SUPPL.,28,157.
84 GREENSTEIN,J.L.1976,A.J.,81,323.
85 GREENSTEIN,J.L.,DOLEZ,N.,AND VAUCLAIR,G.1983,ASTR.AP.,127,25.
86 GRENFELL,T.C.1974,ASTR.AP.,31,303.
87 GUINAN,E.F.,AND SION,E.M.1981,BULL.AAS,13,817.
88 HARRINGTON,R.S.,DAHN,C.C.,MIRANIAN,M.,RIEPE,B.Y.,CHRISTY,J.W.,
         GUETTER,H.H.,ABLES,H.D.,HEWITT,A.V.,VRBA,F.J.,AND WALKER,R.L.
         1978,PUB.U.S.NAVAL OBS.,SECOND SERIES,24,PART 4.
89 HARRINGTON,R.S.,DAHN,C.C.,BEHALL,A.L.,PRISER,J.B.,CHRISTY,J.W.,RIEPE,B.Y.
         ABLES,H.D.,GUETTER,H.H.,HEWITT,A.V.,AND WALKER,R.L.1975,PUB.U.S.
         NAVAL OBS.,SECOND SERIES,24,PART 1.
90 HEINTZ,W.D.1974,A.J.,79,819.
91 HEINTZ,W.D.1973,A.J.,78,780.
92 HESSER,J.E.,LASKER,B.M.,AND NEUPERT,H.E.1976,AP.J.,209,853.
93 HILTNER,W.A.,STEPHENSON,C.B.,AND SANDULEAK,N.1968,AP.LETTERS,2,153.
94 HINTZEN,P.,AND STRITTMATTER,P.A.1974,AP.J.(LETTERS),193,L112.
95 HINTZEN,P.,AND TAPIA,S.1975,PRIVATE COMMUNICATION.
96 HINTZEN,P.,AND TAPIA,S.1975,AP.J.(LETTERS),199,L31.
97 HINTZEN,P.1986,A.J.,92,431.
98 HINTZEN,P.,AND JENSEN,E.1979,PUB.A.S.P.,91,492.
99 HOLBERG,J.B.1986,PRIVATE COMMUNICATION.
1A HOLM,A.V.,PANEK,R.J.,SCHIFFER,F.H.,BOND,H.E.,KEMPER,E.E.,AND GRAUER,A.D.
         1985,AP.J.,289,774.
1B HUMPHREYS,R.M.,LIEBERT,J.,ROMANISHIN,W.,AND STRITTMATTER,P.A.1979,
         PUB.A.S.P.,91,107.
1C IANNA,P.1985/1986,PRIVATE COMMUNICATION.
1D JENKINS,L.F.1952,GENERAL CATALOGUE OF TRIGONOMETRIC PARALLAXES (YALE OBS.).
1E JENKINS,L.F.1963,SUPPLEMENT TO THE PARALLAX CATALOGUE (YALE OBS.).
1F KISELEV,A.A.,AND SUMZINA,PUB.GLAVNOY OBS.PULKOVA,NO.185,119.
1G KOESTER,D.,AND WEIDEMANN,V.1982,ASTR.AP.,108,406.
1H KOESTER,D.,AND REIMARS,D.1981,ASTR.AP.,99,L8.
1I KOESTER,D.,VAUCLAIR,G.,WEIDEMANN,V.,ZEIDLER,K.T.,E.M.1982,ASTR.AP.,13,
         L13.
1J KOESTER,D.,AND REIMERS,D.1985,ASTR.AP.,153,260.
1K KONDO,M.,WATANABE,E.,YUTANI,M.,AND NOGUCHI,T.1982,PUB.ASTR.
         SOC.JAPAN,34,541.
1L KONDO,M.,WATANABE,E.,AND YUTANI,M.1986,PRIVATE COMMUNICATION.
1M KUNKEL,W.E.,LIEBERT,J.,AND BOROSON,T.A.1984,PUB.A.S.P.,96,891.
1N LACOMBE,P.,AND FONTAINE,G.1981,ASTR.AP.SUPPL.,43,367.
1O LACOMBE,P.,LIEBERT,J.,WESEMAEL,F.,FONTAINE,G.1983,AP.J.,272,660.
1P LANDOLT,A.U.1968,AP.J.,153,151.
1Q LANNING,H.,AND PESCH,P.1981,AP.J.,244,280.
1R LANNING,H.1982,AP.J.,253,752.
1S LASKER,B.M.,AND HESSER,J.E.1971,AP.J.(LETTERS),163,L89.
1T LIEBERT,J.,DAHN,C.C.,GRESHAM,M.,AND STRITTMATTER,P.A.1979,AP.J.,233,226.
1U LIEBERT,J.,DAHN,C.C.,AND SION,E.M.1983,IN IAU COLLOQUIUM.,76,
         THE NEARBY STARS AND THE STELLAR LUMINOSITY FUNCTION,
         ED. A.G.D.PHILLIPS,(DORDRECHT: REIDEL),P.103.
1V LIEBERT,J.,AND DAHN,C.C.1983,AP.J.,269,258.
1W LIEBERT J.,AND WEHRSE,R.1983,ASTR.AP.,122,297.
1X LIEBERT,J.,LEBOFSKY,M.,AND RIEKE,G.1981,AP.J.(LETTERS),246,L73.
1Y LIEBERT,J.,WESEMAEL,F.,SION,E.M.,AND WEGNER,G.A.1984,AP.J.,277,692.
1Z LIEBERT,J.,GRESHAM,M.,HEGE,E.K.,AND STRITTMATTER,P.1979,A.J.,84,1612.
2A LIEBERT,J.,DAHN,C.C.,GRESHAM,M.,HEGE,E.K.,MOORE,R.L.,ROMANISHIN,W.,
         AND STRITTMATTER,P.1979,AP.J.,229,196.
2B LIEBERT,J.,ANGEL,R.J.P.,STOCKMAN,H.S.,AND BEAVER,E.A.1978,AP.J.,225,181.
2C LIEBERT,J.,SCHMIDT,G.D.,GREEN,R.F.,STOCKMAN,H.S.,AND
         MCGRAW,J.T.1983,AP.J.,264,262.
2D LIEBERT,J.,SCHMIDT,G.D.,SION,E.M.,STARRFIELD,S.G.,GREEN,R.F.,BOROSON,
        T.A.1985,PUB.A.S.P.,97,158.
2E LIEBERT,J.1977,PUB.A.S.P.,89,78.
2F LIEBERT,J.,AND MARGON,B.1977,AP.J.,216,18.
2G LIEBERT,J.,ANGEL,R.,STOCKMAN,J.,SPINRAD,H.,AND BEAVER,J.1977,AP.J.,214,
         457.
2H LIEBERT,J.,AND STRITTMATTER,P.A.1977,AP.J.(LETTERS),217,L59.
2I LIEBERT,J.,ANGEL,J.R.P.,AND LANDSTREET,J.D.1975,AP.J.(LETTERS),202,L139.
2J LIEBERT,J.1986,PRIVATE COMMUNICATION.
2K LIEBERT,J.,GREEN,R.F.,WESEMAEL,F.,AND MARGON,B.1986,A.J.,86,1384.
2L LIEBERT,J.,DAHN,C.C.,AND MONET,D.G.1987,IN PREPARATION.
2M LIPPINCOTT,S.L.1973,A.J.,78,426.
2N LU,P.K.,AND FREDRICK,L.W.1968,A.J.,73,47.
2O LUYTEN,W.J.1977,WHITE DWARFS II(UNIVERSITY OF MINNESOTA,MINNEAPOLIS).
2P LUYTEN,W.J.,AND LA BONTE,A.E.1973,THE SOUTH GALACTIC POLE(UNIVERSITY OF
         MINNESOTA,MINNEAPOLIS).
2Q LUYTEN,W.J.1976,THE NORTH GALACTIC POLE(UNIVERSITY OF MINNESOTA,
         MINNEAPOLIS).
2R LUYTEN,W.J.1969,A SEARCH FOR FAINT BLUE STARS,L.PROPER MOTIONS FOR 951
         FAINT BLUE STARS(UNIVERSITY OF MINNESOTA,MINNEAPOLIS).
2S LUYTEN,W.J.1971,PROPER MOTION SURVEY WITH THE 48 INCH TELESCOPE,+66 AND
         +60 ZONES(UNIVERSITY OF MINNESOTA,MINNEAPOLIS).
2T LUYTEN,W.J.,AND MILLER,W.C.1951,AP.J.,114,488.
2U LUYTEN,W.J.1959,A SEARCH FOR FAINT BLUE STARS 17(UNIVERSITY OF MINNESOTA
         MINNEAPOLIS).
2V LUYTEN,W.J.1960,PROPER MOTIONS FOR FAINT BLUE STARS 21(UNIVERSITY OF
         MINNESOTA,MINNEAPOLIS).
2W LUYTEN,W.J.1955,A CATALOGUE OF 1849 STARS WITH PROPER MOTIONS
         EXCEEDING 0.5 ANNUALLY (UNIVERSITY OF MINNESOTA,MINNEAPOLIS).
2X LUYTEN,W.J.1963,THE PARALLAX OF LP658-2,PROPER MOTIONS FOR FOUR
         RADIO STARS,ONE HUNDRED AND TEN WHITE DWARFS (UNIVERSITY OF
         MINNESOTA,MINNEAPOLIS).
2Y LUYTEN,W.J.1958,MAGNITUDES AND COLORS FOR SOUTHERN WHITE DWARFS
         (UNIVERSITY OF MINNESOTA,MINNEAPOLIS).
2Z LUYTEN,W.J.1969,PROPER MOTION SURVEY WITH THE FORTY-EIGHT INCH
         SCHMIDT TELESCOPE. XVIII.  BINARIES WITH WHITE DWARF COMPONENTS
         (UNIVERSITY OF MINNESOTA,MINNEAPOLIS).
3A LUYTEN,W.J.1970,WHITE DWARFS(UNIVERSITY OF MINNESOTA,MINNEAPOLIS).
3B LUYTEN,W.J.1969,PUB.ASTR.OBS.UNIV.MINN.3,NO.19.
3C LUYTEN,W.J.1957,CATALOGUE OF 9867 STARS IN THE SOUTHERN HEMISPHERE WITH
         PROPER MOTIONS EXCEEDING 0.2(UNIVERSITY OF MINNESOTA OBS.).
3D LUYTEN,W.J.1961,CATALOGUE OF 7127 STARS IN THE NORTHERN HEMISPHERE WITH
         PROPER MOTIONS EXCEEDING 0.2(UNIVERSITY OF MINNESOTA OBS.).
3E LUYTEN,W.J.1963,BRUCE PROPER MOTION SURVEY,THE GENERAL CATALOGUE, VOL.1.
3F LUYTEN,W.J.1963.BRUCE PROPER MOTION SURVEY,THE GENERAL CATALOGUE, VOL.2.
3G LUYTEN,W.J.1976.LHS CATALOGUE (UNIVERSITY OF MINNESOTA,MINNEAPOLIS,MINN.)
3H LUYTEN,W.J.1971,THE HYADES(UNIVERSITY OF MINNESOTA,MINNEAPOLIS,MINN.).
3I LUYTEN,W.J.1977,THE STARS OF LOW LUMINOSITY.
         (UNIVERSITY OF MINNESOTA,MINNEAPOLIS,MINN.).
3J LUYTEN,W.J.1974,PROPER MOTION SURVEY WITH THE 48 INCH SCHMIDT TELESCOPE.
         XXXVI. PROPER MOTIONS FOR 6955 FAINT STARS
         (UNIVERSITY OF MINNESOTA, MINNEAPOLIS).
3K LUYTEN,W.J.1979,NLTT CATALOGUE
         (UNIVERSITY OF MINNESOTA, MINNEAPOLIS).
3L MARGON,B.,LIEBERT,J.,GATEWOOD,G.,LAMPTON,M.,SPINRAD,H.,AND BOYER,S.1976,
         AP.J.,209,525.
3M MARGON,B.,BOLTE,M.,AND ANDERSON,S.F.1987,A.J.,SUBMITTED.
3N MARKARIAN,B.E.,AND LIPOVETSKI,V.A.1971,ASTROFIZIKA,7,511.
         (ALSO ASTROPHYSICS, 7,299,1974).
3O MCGRAW,J.T.1977,AP.J.(LETTERS),214,L123.
3P MCGRAW,J.T.1976,AP.J.(LETTERS),210,L35.
3Q MCGRAW,J.T.,AND ROBINSON,E.L.1975,AP.J.(LETTERS),200,L89.
3R MCGRAW,J.T.,AND ROBINSON,E.L.1976,AP.J.(LETTERS),205,L155.
3S MCGRAW,J.T.,FONTAINE,G.,DEARBORN,D.S.P.,GUSTAFSON,J.,
         LACOMBE,P.,AND STARRFIELD,S.G.1981,AP.J.,250,349.
3T MCGRAW,J.T.,FONTAINE,G.,DEARBORN,D.S.P.,GUSTAFSON,J.,AND LACOMBE,P.1982.
3U MCGRAW,J.T.,STARRFIELD,S.G.,LIEBERT,J.,AND GREEN,R.F.1979,IN IAU
         COLLOQUIUM 53, WHITE DWARFS AND VARIABLE DEGENERATE STARS,
         ED. H.M.VAN HORN, AND V.WEIDEMANN,(NEW YORK:UNIV.ROCHESTER PRESS),P.377
3V NELSON,B.,AND YOUNG,A.1970,PUB.A.S.P.,82,699.
3W NOGUCHI,T.,MACHARA,J.H.,AND KONDO,M.1980,ANN.TOKYO ASTR.OBS.,18,55.
3X NOUSEK,J.A.ET AL.1986,AP.J.,309,230.
3Y OSWALT,T.1981,PH.D.THESIS,OHIO STATE UNIVERSITY.
3Z PARALLAX FROM USNO FLAGSTAFF.
4A PARALLAX FROM KITT PEAK.
4B PARALLAX FROM YERKES.
4C PARALLAX FROM ALLEGHENY.
4D PARALLAX FROM GREENWICH.
4E PARALLAX FROM LICK.
4F PARALLAX FROM MT.WILSON.
4G PESCH,P.,SANDULEAK,N.1983,AP.J.SUPPL.,51,171.
4H PESCH,P.,SANDULEAK,N.1986,AP.J.SUPPL.,60,543.
4I POPPER,D.M.1954,AP.J.,120,316.
4J PRAVODO,S.H.,ET.AL.1986,AP.J.,300,819.
4K REIMERS,D.,AND KOESTER,D.1982,ASTR.AP.,116.341.
4L REIMERS,D.1984,ASTR.AP.,136,L5.
4M RICHER,H.B.1979,IN IAU COLLOQUIUM 53, WHITE DWARFS AND VARIABLE
         DEGENERATE STARS, ED. H.M. VAN HORN, AND V. WEIDEMANN,
         (NEW YORK:UNIV.ROCHESTER PRESS),P.377.
4N RICHER,H.B.,AND ULYRCH,T.J.1974,AP.J.,192,719.
4O RIDDLE,R.K.1970,PUB.U.S.NAVAL OBS.,SECOND SERIES,20,PART 3.
4P ROBINSON,E.L.,STOVER,R.J.,NATHER,R.E.,AND MCGRAW,J.T.1978,AP.J.,220,614.
4Q ROBINSON,E.L.,AND MCGRAW,J.T.1976,AP.J.(LETTERS),207,L37.
4R ROUTLY,P.M.1972,PUB.U.S.NAVAL OBS.,SECOND SERIES,20,PART 6.
4S RUIZ,M.T.,MAZA,J.,WISCHNJEWSKY,M.,AND GONZALEZ,L.E.1986,
         AP.J.(LETTERS),304,L25.
4T RUSSELL,J.L.,GATEWOOD,G.D.,AND WOREK,T.F.1982,A.J.,87,428.
4U SANDULEAK,N.,AND PHILIP,A.G.DAVIS 1968,PUB.A.S.P.,80,437.
4V SANDULEAK,N.,AND PESCH,P.1984,AP.J.SUPPL.,55,517.
4W SANDULEAK,N.,AND PESCH,P.1982,IAU CIRC. NO.3703.
4X SCHINDLER,M.,ET AL.1982,AP.J.,263,269.
4Y SCHMIDT,G.D.,WEST,S.C.,LIEBERT,J.,GREEN,R.F.,AND STOCKMAN,H.S.1986,309,218.
4Z SCHWARTZ,R.D.1972,PUB.A.S.P.,84,28.
5A SHIPMAN,H.L.,GREENSTEIN,J.L.,AND BOKSENBERG,A.1977,A.J.,82,480.
5B SHIPMAN,H.L.,LIEBERT,J.,AND GREEN,R.F.1987,AP.J.,315,239.
5C SHULOV,O.S.,AND KOPALSKAYA,E.N.1973,ASTROFIZIKA(SSR),10,117.
5D SION,E.M.,AND GUINAN,E.F.1983,PRIVATE COMMUNICATION.
5E SION,E.M.,GUINAN,E.F.,AND WESEMAEL,F.1982,AP.J.,255,232.
5F SION,E.M.,AND GUINAN,E.F.1983,AP.J.(LETTERS),265,L87.
5G SION,E.M.,WESEMAEL,F.,AND GUINAN,E.F.1984,AP.J.,279,758.
5H SION,E.M.,LIEBERT,J.,SCHMIDT,G.,AND STARRFIELD,S.G.1984,BULL.AAS,
        16,724.
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