[1] БAPKOBCKИЙ B. B., КУЛЬЧИЦКИЙ B. Л.: Oбoбщeнныe peшeния нeкoтopыx cмeшaнныx кpaeвыx зaдaч для ypaвнeния Шpeдингepa. Линeйныe и нeлинeйныe кpaeвыe зaдaчи. Издaниe Инcтитyтa мaтeмaтики AH УCCP, Киeв, 1971 г.

[2] KУЛЬЧИЦKИЙ B. Л: O глaдкocти oбoбщeнныx peшeний нeкoтopыx cмeшaнныx кpaeвыx зaдaч для ypaвнeния Шpeдингepa. Лмнeйныe и нeлинeйныe кpaeвыe зaдaчи. Издaниe Инститyтa мaтeмaтики AH УCCP, Kиeв, 1971 г.

[3] LIONS J. L.: Quelques méthodes de résolution des problèmes aux limites non linéaires. Dunod, Gauthieг-Villars, Paris 1969. MR 0259693 | Zbl 0189.40603

[4] REKTORYS K.: On application of direct variational methods to the solution of parabolic boundary value problems of arbitrary order in the space variables. Czech. Math. J. 21 (96), 1971, 318-339. MR 0298237 | Zbl 0217.41601

[5] KAČUR J.: Method of Rothe and nonlinear parabolic equаtions of arbitгary order, I, II. Czech. Math. J.

[6] NEČAS J.: Application of Rothe's method to abstract parabolic equatioпs. Czech. Math. J. 24 (99), 1974, 496-500. MR 0348571

[7] KAČUR J.: Application of Rothe's method to nonlinear evolution equations. Mat. Čas. 25, 1975, 63-81. MR 0394344 | Zbl 0298.34058

[8] KAČUR J., WAWRUCH A.: On an approximate solution for quasilinear parabolic equations. Czech. Math. J. 27 (102), 1977, 220-241. MR 0605665 | Zbl 0377.35036

[9] NEČAS J.: Les méthodes directes en théorìe des équations elliptiques. Prague 1967. MR 0227584 | Zbl 1225.35003

[10] BARBU V.: Nonlinear semigroups and differential equations in Banach spaces. Nooгdhoff Int. Publ., Leyden 1976. MR 0390843 | Zbl 0328.47035