1. Zh.T. Chernousova, M.A. Dokuchaev, M.A. Khibina, V.V. Kirichenko, S.G. Miroshnichenko, and V.N. Zhuravlev, Tiled orders over discrete valuation rings, finite Markov chains and partially ordered sets. I, Algebra and Discrete Math., v.1, 2002, p.32-63.
2. Zh.T. Chernousova, M.A. Dokuchaev, M.A. Khibina, V.V. Kirichenko, S.G. Miroshnichenko, and V.N. Zhuravlev, Tiled orders over discrete valuation rings, finite Markov chains and partially ordered sets. II, Algebra and Discrete Math., v.2, N2, 2003, p. 47-86.
3. Kh.M. Danlyev, The homological dimension of semi-maximal rings, Izv. Akad. Nauk Turkmen. SSR, Ser. Fiz.-Tekhn. Khim. Geol. Nauk, 1989, No.4, p.83-86 (in Russian).
4. Kh.M. Danlyev, V.V. Kirichenko, Yu.V. Yaremenko, On weakly prime Noetherian semiperfect rings with two-generated right ideals, Dopov. Nats. Akad. Nauk Ukraini, N.12, 1997, p.7-9.
5. R.P. Dilworth, A decomposition theorem for partially ordered sets, Annals of Mathematics, vol. 51, N1, 1950, p.161-166.