@article{PismaZhETF.7.101, title = {Elementary Solutions of the Quantum Problem of the Motion of a Particle in the Field of Two Coulomb Centers}, author = {Demkov, Yu. N.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {7}, issue = {3}, pages = {101}, year = {1968}, doi = {}, url = {http://jetpletters.ru/ps/0/article_25588.shtml}, }