Arnold, Vladimir Igorevich. Catastrophe Theory. Castrigiano, Domenico P. L. and Hayes, Sandra A. Catastrophe Theory Postle, Denis. Catastrophe Theory – Predict and avoid personal disasters. Poston, Tim and Stewart, Ian. Catastrophe: Theory and Its Applications. Sanns, Werner, Catastrophe Theory with Mathematics. A Geometric Approach. Saunders, Peter Timothy. An Introduction to Catastrophe Theory.”