1.
, , . Partial differential equations and the calculus of variations. Basel: Birkhauser; 1989.
, et . Partial differential equations and the calculus of variations. Basel : Birkhauser, 22 mai 1989. ISBN 3-7643-3424-X
Colombini Ferrucio, Marino Antonio, & Modica Luciano. (1989). Partial differential equations and the calculus of variations: Vol. 1 essays in honor of Ennio De Giorgi. Birkhauser.
Style de citation MLA (8e éd.)Colombini Ferrucio, et al. Partial Differential Equations and the Calculus of Variations: Vol. 1 Essays in Honor of Ennio De Giorgi. Birkhauser, 1989.
Attention : ces citations peuvent ne pas être correctes à 100%.