1. Nonisolated hypersurface singularities;Aleksandrov,1990
2. Index of vector fields and logarithmic differential forms;Aleksandrov;Funct. Anal. and Appl.,2005
3. Generalized Fuchsian systems of differential equations;Aleksandrov;Journal of Mathematical Sciences (N.Y.),2006
4. Catastrophe theory;Arnol'd,1981
5. Ordinary differential equations. A qualitative approach with applications;Arrowsmith,1982