Higher math for beginners (mostly physics and engineers) по Zeldovich, Ya B.

A simple non-euclidean geometry and its physical basis. по Yaglom, I. M.

Complex numbers in geometry. по Iaglom (Yaglom), I. M.

Geometric transformations по Yaglom, I. M. (Isaak Moiseevich) 1921-

Geometric transformations по Iaglom (Yaglom), I. M.

Convex figures по Iaglom (Yaglom), I.M. & V.G. Boltyanskii