Aliev, A. R., and E. H. Eyvazov. “On Wave Operators for the Multidimensional electromagnetic Schrödinger Operator in Divergent Form”. Ukrains’kyi Matematychnyi Zhurnal 68, no. 8 (August 25, 2016): 1011-1020. Accessed April 19, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/1898.