@article{10_14708_cm_v24i1_6074,
     author = {M. Golasi\'nski},
     title = {On homotopy in the category of small categories},
     journal = {Commentationes Mathematicae},
     pages = { 43--49},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1984},
     doi = {10.14708/cm.v24i1.6074},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v24i1.6074/}
}