%0 Journal Article %A Michael Gil %T On location in a half-plane of zeros of perturbed first order entire functions %J Mathematica Moravica %D 2019 %P 51 - 61 %V 23 %N 1 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/MM3_2019_23_1_a4/ %F MM3_2019_23_1_a4