S.M. Gusein-Zade

Singularities of Differentiable Maps, Volume 1

Singularities of Differentiable Maps, Volume 2

Singularities of Differentiable Maps: Classification of Critical Points Caustics and Wave Fronts v. 1 (Monographs in Mathematics)

Singularities of Differentiable Maps

Singularities of Differentiable Maps : Volume I

Singularities of differentiable maps