Paerl, Eric Ralph Representations of the Lorentz group and projective geometry. - Amsterdam ; Mathematisch Centrum, 1975. - vi, 214 p. ; 24 cm. - Mathematical Centre tracts; 25. . 2nd printing. Index. Bibliogr. p. 205-208. ISBN: 9061960398 Dewey Class. No.: 515.35 / P126r