Griffiths P. A.
Exterior differential systems and the calculus of variations - Америк Birkhauser Verlag 1983 - 336
3764331038 3000
mathematics calculus of variations exterior differential systems
Exterior differential systems and the calculus of variations - Америк Birkhauser Verlag 1983 - 336
3764331038 3000
mathematics calculus of variations exterior differential systems