@article{PMF_1904_15_1_a10,
     author = {Ernst, M.},
     title = {Wyznaczenie kszta{\l}tu pozornego sklepienia niebieskiego},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {135--158},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {1904},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1904_15_1_a10/}
}