%0 Journal Article %A M. Ya. Ivanov %T On ``characteristic'' argument functions in acoustics and electrodynamics %J Matematičeskoe modelirovanie %D 2000 %P 65-86 %V 12 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_2000_12_9_a5/ %G ru %F MM_2000_12_9_a5