%0 Journal Article %A A. A. Kozlov %A V. A. Nosov %A A. E. Pankratiev %T Matrices and graphs of essential dependence of proper families of functions %J Fundamentalʹnaâ i prikladnaâ matematika %D 2008 %P 137-149 %V 14 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2008_14_4_a8/ %G ru %F FPM_2008_14_4_a8