@article{DM_2012_24_1_a2,
     author = {M. M. Glukhov and P. N. Zakrevskii},
     title = {On additivity and affinity coefficients of discrete functions},
     journal = {Diskretnaya Matematika},
     pages = {30--47},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2012_24_1_a2/}
}