Carathéodory, Constantin 1873-1950
Calculus of variations and partial differntial equations of the first order - San Francisco : Holden Day, 1965. - v.1, 171 páginas
Ecuaciones Diferenciales
Calculus of variations and partial differntial equations of the first order - San Francisco : Holden Day, 1965. - v.1, 171 páginas
Ecuaciones Diferenciales