Meulen, S. G. van der. Torrix: a programming system for operations on vectors and matrices over arbitrary fields and of variable size. Vol. 1. - Amsterdam ; Mathematisch Centrum, 1982. - vii, 231 p.; 24 cm. - Mathematical Centre tracts; 86. . Index. Bibliography: p. 229-231. ISBN: 9061961521 Dewey Class. No.: 005.133 / M597t