%0 Journal Article %A A. Radyna %A Ya. Radyna %A Ya. Radyno %T Unbounded Transforms and Approximation of Functions over $p$-adic Fields %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2009 %P 220-228 %V 265 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2009_265_a18/ %G en %F TM_2009_265_a18