1-12 of 12 Books

Introduction to complex variables and applications
By Ruel Vance Churchill

Lekt︠s︡ii po variat︠s︡ionnomu ischislenii︠u︡
By N. I. Akhiezer

Complex variables and applications
By Ruel Vance Churchill

The calculus of variations and optimal control
By George Leitmann

The Lebesgue Integral (Cambridge Tracts in Mathematics)
By J. C. Burkill

The theory of functions of real variables
By Lawrence M. Graves

The topology of the calculus of variations in the large
By L. A. Li͡usternik

Calculus of variations and control theory
By Symposium on Calculus of Variations and Control Theory University of Wisconsin--Madison 1975.