Quasars & gravitional lenses :proceedings of the 24th liege international astrophysical colloquium, June 21-24, 1983
- University de Liege ; 1983.
Astrophysical
Report
524.738+524.82:531.5(069) LIE
Astrophysical
Report
524.738+524.82:531.5(069) LIE