%0 Journal Article %A B. Jefferies %A S. I. Piskarev %T Tauberian Theorems for Cosine Operator Functions %J Informatics and Automation %D 2002 %P 474-480 %V 236 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_2002_236_a46/ %G en %F TRSPY_2002_236_a46