@article{KUMEM_1927_2_a6,
     author = {D. Mordukhai-Boltovskoi},
     title = {Sur les constructions g\'eom\'etriques dans l'espace de {Lobatcheffsky}},
     journal = {In memoriam N. I. Lobatschevskii},
     pages = {67--82},
     publisher = {mathdoc},
     volume = {2},
     year = {1927},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUMEM_1927_2_a6/}
}