@article{10_14708_cm_v46i1_5205,
     author = {Antoni Augustynowicz and Jan Jankowski},
     title = {On extremal solutions of differential equations with advanced argument},
     journal = {Commentationes Mathematicae},
     pages = { 17--14},
     publisher = {mathdoc},
     volume = {46},
     number = {1},
     year = {2006},
     doi = {10.14708/cm.v46i1.5205},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v46i1.5205/}
}