Akivis, Maks A. and Goldberg, Vladislav V. Conformal differential geometry and its generalizations - New York John Wiley 1996 - xiv, 383p. Index, Bibl. - Pure and Applied Mathematics a Wiley - Interscience series of texts, monographs and tracts . "Purchased under NBHM grant for the year 1996-97" Dewey Class. No.: 516 / Ak315.CD