%0 Journal Article %A Rachůnková, Irena %T On a coincidence of central dispersions of the first and second kind in connection with periodic solutions of the differential equation $y'=q(t)y$ %J Archivum mathematicum %D 1975 %P 205-216 %V 11 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1975__11_4_a2/ %G en %F ARM_1975__11_4_a2