Gilbert, R. P. Function theoretic methods in partial differential equations. Academic Press.
Chicago-стиль цитированияGilbert, Robert P. Function Theoretic Methods in Partial Differential Equations. Academic Press.
MLA-цитированиеGilbert, Robert P. Function Theoretic Methods in Partial Differential Equations. Academic Press.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.