%0 Journal Article %A S. M. Sedova %T On a~criterion for the stability of a~scalar equation with constant delay and periodical coefficient %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1997 %P 61-71 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1997_11_a7/ %G ru %F IVM_1997_11_a7