1. Akhiev, S. S. “About the general form of the linear bounded functionals in some space of S. L. Sobolev type,”(in Russian) Akad. Nauk. Azerb. SSR, Dokl. 34(6), 1979.
2. Akhiev S. S.“Representations of the solutions of some linear operator equations,” Soviet Math.Dokl. 21(2), 1980, 555–558.
3. Akhiev, S. S. and Inan, E. “The local and nonlocal non-smooth pseudoparabolic systems, their fundamental solutions and applications,” CMDS9, Eds. Esin Inan and Konstantin Z. Markov,World Scientific, London, Singapore, 1998, 552–529.
4. Akhiev, S. S. and Orucoglu, K. “Fundamental solutions of some linear operator equations andapplications,” Acta Appl. Math. 71, 2002, 1–30.
5. Colton, D. “Pseudoparabolic equations in one space variable,”J Differential Equations 12(3),1972, 559–564.