@article{AULFM_1991_04_a4,
     author = {Fabija\'nczyk, Monika and War\k{e}\.zak, Anna},
     title = {Struktura czasu pracy w{\l}asnej student\'ow {I} roku matematyki {Uniwersytetu} {{\L}\'odzkiego}},
     journal = {Acta Universitatis Lodziensis. Folia Mathematica},
     publisher = {mathdoc},
     volume = {04},
     year = {1991},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AULFM_1991_04_a4/}
}