%0 Journal Article %A T. L. Sabatulina %T Positiveness conditions for the Cauchy function for differential equations with distributed delay %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2010 %P 50-62 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2010_11_a4/ %G ru %F IVM_2010_11_a4