Differential equations and calculus of variations
Elsgolts, L
Differential equations and calculus of variations L. Elsgolts - Moscow MIR Publishers 1973 - xii,146p.
Calculus of variations
Differential equations
517.9 / ELS
Differential equations and calculus of variations L. Elsgolts - Moscow MIR Publishers 1973 - xii,146p.
Calculus of variations
Differential equations
517.9 / ELS