1.: Derivatives and differentials, definite integrals, expansion in series, applications to geometry / translated by Earle Raymond Hedrick 2.1. part: Functions of a complex variable / translated by Earle Raymond Hedrick and Otto Dunkel 2.2. part: Differential equations / translated by Earle Raymond Hedrick and Otto Dunkel 3.1. part: Variation of solutions, partial differential equations of the second order / translated by Howard G. Bergmann 3.2. part: Integral equations, calculus of variations / translated by Howard G. Bergmann |