@article{PismaZhETF.56.169, title = {Effect of adsorbed elements on the secondary emission of metal ions}, author = {Urazgil'din, I. F.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {56}, issue = {3}, pages = {169}, year = {1992}, doi = {}, url = {http://jetpletters.ru/ps/0/article_19405.shtml}, }