2001 FD90
2001 FE193, 2001 KE77, 2001 KO77
2001 FE7
2001 FE90
2001 February 9 meeting of the Royal Astronomical Society
2001 FF7
2001 FF7
2001 FF90
2001 FF90
2001 FG193
2001 FJ194
2001 FK185
2001 FK193
2001 FL185
2001 FL194
2001 Flare of Mkn 421 in gamma-ray (Aharonian+ 2003)
2001 FM129
2001 FM129
2001 FM185
2001 FM194