@article{10_14708_cm_v55i2_1109,
     author = {Karol Baron},
     title = {On orthogonally additive injections and surjections},
     journal = {Commentationes Mathematicae},
     pages = { 157\ensuremath{-}162},
     publisher = {mathdoc},
     volume = {55},
     number = {2},
     year = {2015},
     doi = {10.14708/cm.v55i2.1109},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v55i2.1109/}
}