@article{10_14708_cm_v45i2_5194,
     author = {Jacek Chmieli\'nski},
     title = {A comparison of some conditional functional equations},
     journal = {Commentationes Mathematicae},
     pages = { 137--144},
     publisher = {mathdoc},
     volume = {45},
     number = {2},
     year = {2005},
     doi = {10.14708/cm.v45i2.5194},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v45i2.5194/}
}