%0 Journal Article %A A. V. Kostin %T On analogues of the Fuhrmann's theorem on the Lobachevsky plane %J Vladikavkazskij matematičeskij žurnal %D 2023 %P 58-67 %V 25 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMJ_2023_25_4_a5/ %G ru %F VMJ_2023_25_4_a5