1. Foundations of Modern Analysis;Dieudonné,1960
2. Les Singularités des Applications Différentiables;Haefliger;exposé No. 7,1956
3. Characterization of Stable Mappings;Mather,1967
4. Stability of C∞ mappings; I, The Division theorem;Mather;Ann. Math.,1968
5. Stability of C∞ mappings; II, Infinitesimal stability implies stability;Mather;Ann. Math.,1969