@article{PismaZhETF.46.14, title = {Nature of the narrow energy peak of positrons produced in heavy-ion collisions}, author = {Demkov, Yu. N. and Ovchinnikov, S. Yu.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {46}, issue = {1}, pages = {14}, year = {1987}, doi = {}, url = {http://jetpletters.ru/ps/0/article_18490.shtml}, }