The quasar pair Q1634+267A,B and the binary QSO versus dark lens hypotheses

1. Peng, C.Y.
2. Impey, C.D.
3. Falco, E.E.
4. Kochanek, C.S.
5. Lehár, J.
6. Mcleod, B.A.
7. Rix, H.-W.
8. Keeton, C.R.
9. Muñoz, J.A.