@article{article22204b94,
title   = {Structure of the electromagnetic field allowing exact solution of the Schrödinger equation in superposition with an Aharonov–Bohm field},
author = {Bagrov, V G and Levin, A D and Gitman, D M},
year = {2012},
doi = {10.1007/s11182-011-9694-0},
journal   = {Russian Physics Journal}
}