–
Статьи в журналах
-
- 2007 Pseudo-spherical surfaces and some problems of mathematical physics
- Popov Pseudo-spherical surfaces and some problems of mathematical physics J Math Sci A.G., New York, 2007, 141 V., No 1., 1062-1070 P.
- в журнале Journal of Mathematical Sciences, издательство Plenum Publishers (United States), том 141, № 1, с. 1062-1070