@article{KUMEM_1927_2_a10,
     author = {F. Schur},
     title = {Konstruction von {Lobatschefskij's} {Parallelen}},
     journal = {In memoriam N. I. Lobatschevskii},
     pages = {99--102},
     publisher = {mathdoc},
     volume = {2},
     year = {1927},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/KUMEM_1927_2_a10/}
}