\bib{1989/gianni} \yr 1989 \isbn 3--540--51084--2 \mr 90i:00005 \editor Patrizia Gianni \book Symbolic and algebraic computation: proceedings of the international symposium (ISSAC '88) held in Rome, July 4--8, 1988 \series Lecture Notes in Computer Science \seriesvol 358 \publ Springer \publaddr Berlin \endref