1. A brief history of the muMATH/DERIVE Cass;Rich;Deriv. Newsl.,2000
2. Conceptualizing a pedagogical CAS for algebraic manipulation of expression;Rein Prank;R & E-Source,2014
3. Computer algebra systems;J.A. van Hulzen,1982
4. Computer Algebra Systems: A Practical Guide;Wester,1999
5. Improving CAS capabilities: New rules for computing improper integrals;Galán-García;Appl. Math. Comput.,2018