%0 Journal Article %A T. L. Sabatulina %T On the positiveness of the Cauchy function of some integro-differential equation %J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki %D 2008 %P 122-123 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VUU_2008_2_a39/ %G ru %F VUU_2008_2_a39