1. Bitsadze A.V. Some classes of partial differential equations. Nauka, Moscow. 1981(in Russian).
2. Bougoffa L. A third-order nonlocal problem with nonlocal conditions.//Internat. J.Math. and Math. Sci. 34(28), 1501–1507. 2004.
3. Bouziani A. On the solvability of a nonlocal problem arising in dynamics of moisturetransfer.//Georgian Math. J. 10(4), 607–627. 2003.
4. Brekhovskikh L.M., Goncharov V.V. Introduction to the continuum mechanics.Nauka, Moskow. 1982 (in Russian).
5. Daynyak V.V., Korzyuk V.I. Problem of the Dirichlet type for linear differentialequation of the third order.// Differens. uravneniya. 23(5), 867–872. 1987.