%0 Journal Article %A C. G. Beneventano %A I. V. Fialkovskii %A E. M. Santangelo %T Zeros of combinations of Bessel functions and the~mean charge of graphene nanodots %J Teoretičeskaâ i matematičeskaâ fizika %D 2016 %P 58-73 %V 187 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2016_187_1_a4/ %G ru %F TMF_2016_187_1_a4