1. Foundations of Mechanics;Abraham,1978
2. Transversal Mappings and Their Flows;Abraham,1967
3. On matrices depending on parameters;Arnold;Russian Math. Surveys,1971
4. Lectures on bifurcations in versal families;Arnold;Russian Math. Surveys,1972
5. Loss of stability of self-oscillations close to resonance and versal deformations of equivariant vector fields;Arnold;Functional Anal. Appl.,1977