@book{1981-wang
,title={{SYM-SAC '81: proceedings of the 1981 ACM Symposium on Symbolic and Algebraic Computation, Snowbird, Utah, August 5--7, 1981}}
,booktitle={{SYM-SAC '81: proceedings of the 1981 ACM Symposium on Symbolic and Algebraic Computation, Snowbird, Utah, August 5--7, 1981}}
,editor={Paul S. Wang}
,ISBN={0--89791--047--8}
,publisher={Association for Computing Machinery}
,address={New York}
,year={1981}
}