header
cover

1 - Dirichlet's principles, conformal mapping and minimal surfaces
Courant, Richard (1888-1972)   /   Schiffer, Menahem Max (1911-1997) (Collab.)

Cote : [45 COU 50]

cover

2 - The calculus of variations
Akhiezer, Naoum Ilitch (1901-1980)   /   Frink, Aline H. (Trad.)

Cote : [67.4 AKH 62]