%0 Journal Article %A L. V. Fardigola %T On controllability problems for the wave equation on a half-plane %J Žurnal matematičeskoj fiziki, analiza, geometrii %D 2005 %P 93-115 %V 1 %N 1 %U http://geodesic.mathdoc.fr/item/JMAG_2005_1_1_a5/ %G en %F JMAG_2005_1_1_a5