@article{PismaZhETF.7.30, title = {Radiation of an Atom (Molecule) in an Absorbing Medium}, author = {Feinberg, E. L.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {7}, issue = {1}, pages = {30}, year = {1968}, doi = {}, url = {http://jetpletters.ru/ps/0/article_25566.shtml}, }