SHAPOVAL, Alexander, 1997, The integral manifold of a nonlinear elliptic equation in a cylinder. Mathematical notes [na spletu]. 1997. Vol. 61, no. 3, p. 391–395. [Dostopano 21 april 2025]. DOI 10.1007/BF02355428. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=6507