Generalized symplectic geometries and the index of families of elliptic problems

Allgemeine Flächentheorie

Carl Friedrich Gauss

A comprehensive introduction of differential geometry

Michael Spivak

A treatise on the differential geometry of curves and surfaces

Luther Pfahler Eisenhart

Riemannian geometry and geometric analysis

Jürgen Jost

Tensor Algebra and Tensor Analysis for Engineers

Mikhail Itskov

A treatise on the differential geometry of curves and surfaces

Eisenhart, Luther Pfahler

Submanifolds and holonomy

Jürgen Berndt

Nonlinear Waves and Solitons on Contours and Closed Surfaces

Andrei Ludu

Tensor geometry

C. T. J. Dodson

The foundations of differential geometry

Veblen, Oswald