@article{PMF_1939_46_1_a4,
     author = {Mi\k{e}sowicz, M.},
     title = {Z bada\'n nad ciek{\l}emi kryszta{\l}ami},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {149--181},
     publisher = {mathdoc},
     volume = {46},
     number = {1},
     year = {1939},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1939_46_1_a4/}
}