@article{PMF_1914_25_1_a3,
     author = {Kroo, Jan},
     title = {Zasady {Mechaniki} statystycznej},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {55--104},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {1914},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1914_25_1_a3/}
}