1. On functions with mild singularities;Arnold;Functional Analysis and its Applications,1989
2. Surgery of singularities of smooth mappings;Eliashberg;Mathematics of the USSR Izvesitiya,1972
3. Stable Mappings and Their Singularities;Golubitsky,1973
4. Algebraic singularities have maximal reductive automorphism groups;Hauser;Nagoya Mathematical Journal,1989
5. Differential Topology;Hirsh,1976