| YFPSC light curves of PG 0923+201 | Spectroscopy of PG 0923+201 |
| J/ApJ/920/9.graph_sql_2_pPG0923+201 light curve | J/ApJ/920/9.graph_sql_2_sPG0923+201 spectroscopy |
YFPSC light curves of PG 1001+291 | Spectroscopy of PG 1001+291 |
| J/ApJ/920/9.graph_sql_3_pPG1001+291 light curve | J/ApJ/920/9.graph_sql_3_sPG1001+291 spectroscopy |
|