@article{CMH_1937__10_138704, author = {K. Merz}, title = {Vielflache mit {Doppelstrecken,} aus {Prismen.}}, journal = {Commentarii mathematici Helvetici}, pages = {270--274}, publisher = {mathdoc}, volume = {10}, year = {1937}, url = {http://geodesic.mathdoc.fr/item/CMH_1937__10_138704/} }