%0 Journal Article %A S. M. Shimorin %T Reproducing kernels and extremal functions in Dirichlet type spaces %J Zapiski Nauchnykh Seminarov POMI %D 1998 %P 198-220 %V 255 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1998_255_a13/ %G ru %F ZNSL_1998_255_a13