TY - BOOK AU - Bridges,T.J & Furter,J.E ED - Furter, J.E TI - Singularity theory & equivariant symplectic maps T2 - Lecture notes in mathematics 1558 SN - 3540572961 U1 - 6.07+22 PY - 1993/// CY - Berlin PB - Springer ER -