%0 Journal Article %A Stochel, Jan %A Szafraniec, Franciszek Hugon %T A peculiarity of the creation operator %J Glasgow mathematical journal %D 2002 %P 137-147 %V 44 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089502010091/ %R 10.1017/S0017089502010091 %F 10_1017_S0017089502010091