@article{10_14708_wm_v14i1_1978,
     author = {A. Piskorek},
     title = {Witold {Pogorzelski} {R\'ownania} ca{\l}kowe i ich zastosowania, t. {IV}},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 156--158},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {1972},
     doi = {10.14708/wm.v14i1.1978},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v14i1.1978/}
}