Romakina Lyudmila Nikolaevna Russia Saratov State University, Russia, Saratov, Astrakhanskaya 83 Associate professor Candidate of physico-mathematical sciences (1998)romakinaln@mail.ruPhone: +7 987 826 51 86 Author's articles Hyperbolic Parallelograms of the Plane b H Oval lines of the hyperbolic plane of positive curvature Parabolic parallelograms of the plane Ĥ Finite Closed 3(4)-Loops of Extended Hyperbolic Plane Finite Closed 5-Loops of Extended Hyperbolic Plane
