Focus on black hole research / Ed. Paul V. Kreitler. - New York : Nova science publ., [2006]. - ix, 183 p. : fig. ; 26 cm.см.. - (Nova). - Bibliogr. after the chap.. - ISBN 1-59454-460-3[MFN: 11602]
New developments in black hole research / Ed. Paul V. Kreitler. - New York : Nova science publ., [2006]. - ix, 206 p. : ill. ; 26 cm.см.. - (Nova). - Bibliogr. after the chap.. - ISBN 1-59454-641-X[MFN: 11603]