%0 Journal Article %A V. G. Krotov %A M. A. Prokhorovich %T The Luzin approximation of functions from the classes $W^p_\alpha$ on metric spaces with measure %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2008 %P 55-66 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2008_5_a6/ %G ru %F IVM_2008_5_a6