1997, APJ, 479, 642, 10.1086/303926
1988, APJ, 331, 699, 10.1086/166593
1996, APJ, 471, 115, 10.1086/177957
1998, APJ, 498, 504, 10.1086/305563
1999, Monthly Notices of the Royal Astronomical Society, 305, L21, 10.1046/j.1365-8711.1999.02590.x
1978, Monthly Notices of the Royal Astronomical Society, 184, 53, 10.1093/mnras/184.1.53
1998, Monthly Notices of the Royal Astronomical Society, 298, 121, 10.1046/j.1365-8711.1998.01617.x
1998, Monthly Notices of the Royal Astronomical Society, 293, 49, 10.1046/j.1365-8711.1998.01119.x
1990, APJ, 350, 505, 10.1086/168406
1999, Monthly Notices of the Royal Astronomical Society, 308, 77, 10.1046/j.1365-8711.1999.02693.x
1986, APJ, 311, 589, 10.1086/164798
1997, MEM SOC ASTRON ITAL, 68, 27
1999, Monthly Notices of the Royal Astronomical Society, 302, 391, 10.1046/j.1365-8711.1999.02131.x
1994, Monthly Notices of the Royal Astronomical Society, 271, 781, 10.1093/mnras/271.4.781
1997, APJ, 486, 11L, 10.1086/310829
1997, Monthly Notices of the Royal Astronomical Society, 286, 393, 10.1093/mnras/286.2.393
1988, Monthly Notices of the Royal Astronomical Society, 230, 5, 10.1093/mnras/230.1.5P
1997, AJ, 114, 1771, 10.1086/118606
1998, Monthly Notices of the Royal Astronomical Society, 297, 817, 10.1046/j.1365-8711.1998.01534.x
1997, APJ, 480, 99L, 10.1086/310630
1998, APJ, 498, 579, 10.1086/305576
1998, Monthly Notices of the Royal Astronomical Society, 293, 107, 10.1046/j.1365-8711.1998.01131.x
1998, NAT, 392, 359, 10.1038/32837
1998, Monthly Notices of the Royal Astronomical Society, 295, 877, 10.1046/j.1365-8711.1998.01308.x
1993, Monthly Notices of the Royal Astronomical Society, 263, 168, 10.1093/mnras/263.1.168
1998, Monthly Notices of the Royal Astronomical Society, 300, 817, 10.1111/j.1365-8711.1998.t01-1-01951.x
1998, APJ, 503, 505, 10.1086/306017
1990, ARAA, 28, 437, 10.1146/annurev.aa.28.090190.002253
1992, APJ, 400, 460, 10.1086/172009
1993, APJ, 409, 548, 10.1086/172686
1995, APJ, 448, 41, 10.1086/175940
1993, APJ, 416, 415, 10.1086/173247
1994, APJ, 427, 165, 10.1086/174130
1998, NAT, 394, 241, 10.1038/28328
1995, AJ, 110, 994, 10.1086/117578
1996, Monthly Notices of the Royal Astronomical Society, 281, 487, 10.1093/mnras/281.2.487
1998, Monthly Notices of the Royal Astronomical Society, 297, 23, 10.1046/j.1365-8711.1998.01395.x
1993, Monthly Notices of the Royal Astronomical Society, 261, 921, 10.1093/mnras/261.4.921
1993, Monthly Notices of the Royal Astronomical Society, 264, 201, 10.1093/mnras/264.1.201
1997, Monthly Notices of the Royal Astronomical Society, 286, 795, 10.1093/mnras/286.4.795
1999, Monthly Notices of the Royal Astronomical Society, 303, 188, 10.1046/j.1365-8711.1999.02202.x
1999, Monthly Notices of the Royal Astronomical Society, 307, 529, 10.1046/j.1365-8711.1999.02711.x
1998, APJ, 498, 541, 10.1086/305588
1995, ARAA, 33, 581, 10.1146/annurev.aa.33.090195.003053
1994, Monthly Notices of the Royal Astronomical Society, 271, 676, 10.1093/mnras/271.3.676
1996, APJ, 460, 1L, 10.1086/176947
1969, NAT, 223, 690, 10.1038/223690a0
1995, APJ, 454, 77, 10.1086/176467
1999, APJ, 511, 67L, 10.1086/311848
1999, Monthly Notices of the Royal Astronomical Society, 308, 377, 10.1046/j.1365-8711.1999.02676.x
1996, Monthly Notices of the Royal Astronomical Society, 283, 1388, 10.1093/mnras/283.4.1388
1998, AJ, 115, 2285, 10.1086/300353
1994, APJ, 431, 9L, 10.1086/187460
1998, Monthly Notices of the Royal Astronomical Society, 295, 319, 10.1046/j.1365-8711.1998.01227.x
1999, Monthly Notices of the Royal Astronomical Society, 304, 175, 10.1046/j.1365-8711.1999.02289.x
1995, APJ, 452, 710, 10.1086/176343
1983, Monthly Notices of the Royal Astronomical Society, 205, 1009, 10.1093/mnras/205.4.1009
1996, APJ, 462, 114, 10.1086/177133
1995, APJ, 454, 69, 10.1086/176466
1996, NEW ASTRON, 1, 35, 10.1016/S1384-1076(96)00003-6
1997, NEW ASTRON, 2, 533, 10.1016/S1384-1076(97)00039-0
1984, ARAA, 22, 471, 10.1146/annurev.aa.22.090184.002351
Rees, 1990, Science, 247, 817, 10.1126/science.247.4944.817
1999, Monthly Notices of the Royal Astronomical Society, 307, 637, 10.1046/j.1365-8711.1999.02659.x
1995, AJ, 110, 68, 10.1086/117497
1999, APJ, 510, 125, 10.1086/306557
1996, NAT, 384, 439, 10.1038/384439a0
1992, Monthly Notices of the Royal Astronomical Society, 259, 725, 10.1093/mnras/259.4.725
1999, APJ, 519, 1, 10.1086/307363
1996, Monthly Notices of the Royal Astronomical Society, 283, L79, 10.1093/mnras/283.3.L79
1998, APJ, 492, 452, 10.1086/305068
1996, Monthly Notices of the Royal Astronomical Society, 283, 930, 10.1093/mnras/283.3.930
1999, AJ, 117, 744, 10.1086/300730
1994, APJ, 421, 412, 10.1086/173660
1991, APJ, 379, 52, 10.1086/170483
1998, ASP CONF SER, 146, 92
