%0 Journal Article %A A. V. Kisselev %T Approximate formula for the total cross section for a moderately small eikonal function %J Teoretičeskaâ i matematičeskaâ fizika %D 2019 %P 84-104 %V 201 %N 1 %U http://geodesic.mathdoc.fr/item/TMF_2019_201_1_a5/ %G ru %F TMF_2019_201_1_a5