Voir la notice de l'article provenant de la source Math-Net.Ru
[1] Rozenfeld B. A., Neevklidovy prostranstva, Nauka, M., 1969
[2] Rozenfeld B. A., Neevklidovy geometrii, GITTL, M., 1955.
[3] Romakina L. N., Geometriya giperbolicheskoi ploskosti polozhitelnoi krivizny, v 4 ch., v. 1, Trigonometriya, Izd-vo Sarat. un-ta, Saratov, 2013
[4] Romakina L. N., “Analogi formuly Lobachevskogo dlya ugla parallelnosti na giperbolicheskoi ploskosti polozhitelnoi krivizny”, Sib. elektron. matem. izv., 2013, no. 10, 393–407
[5] Romakina L. N., “Konechnye zamknutye 3(4)-kontury rasshirennoi giperbolicheskoi ploskosti”, Izv. Sarat. un-ta. Nov. ser. Ser. Matematika. Mekhanika. Informatika, 10:3 (2010), 14–26
[6] Romakina L. N., “Teorema o ploschadi pryamougolnogo trekhrebernika giperbolicheskoi ploskosti polozhitelnoi krivizny”, Dalnevost. matem. zhurn., 13:1 (2013), 127–147
[7] Romakina L. N., “O ploschadi trekhrebernika na giperbolicheskoi ploskosti polozhitelnoi krivizny”, Matem. tr., 17:2 (2014), 184–206
[8] Romakina L. N., “Razbieniya giperbolicheskoi ploskosti polozhitelnoi krivizny pravilnymi oritsiklicheskimi $n$-trapetsiyami”, Chebyshevskii sb., 16:3 (2015), 376–416
[9] Romakina L. N., “Analogi formuly Gerona dlya trekhrebernikov tipov $eee(I)$, $eee(III)$ giperbolicheskoi ploskosti polozhitelnoi krivizny”, Matematika. Mekhanika, 17 (2015), 52–55
[10] Romakina L. N., Churilova V. O., “Ellipticheskie oritsiklicheskie $n$-reberniki ploskosti $\widehat{H}$”, Matematika. Mekhanika, 17 (2015), 56–59
[11] Romakina L. N., “Ploschadi vpisannykh v gipertsikl pravilnykh mnogougolnikov giperbolicheskoi ploskosti polozhitelnoi krivizny”, Innovatsionnaya nauka, 6:3 (2016), 20–23
[12] Romakina L. N., “The Area of a Generalized Polygon without Parabolic Edges of a Hyperbolic Plane of Positive Curvature”, Asian Journal of Mathematics and Computer Research, 10:4 (2016), 293–310