BREGMAN, JN, GLASSGOLD, AE, HUGGINS, PJ
et al. (1982). SIMULTANEOUS OBSERVATIONS OF THE BL LACERTAE OBJECT-I ZW 187
.
ASTROPHYSICAL JOURNAL, 253(1), 19-27. 10.1086/159605
BREGMAN, JN, GLASSGOLD, AE, HUGGINS, PJ et al. (1982). SIMULTANEOUS OBSERVATIONS OF THE BL LACERTAE OBJECT-I ZW 187
. ASTROPHYSICAL JOURNAL, 253(1), 19-27. 10.1086/159605