@article{10_4064_cm_21_2_279_284,
     author = {Marek Kuczma},
     title = {Almost convex functions},
     journal = {Colloquium Mathematicum},
     pages = {279--284},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {1970},
     doi = {10.4064/cm-21-2-279-284},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-21-2-279-284/}
}