@article{PismaZhETF.43.471, title = {Photo-emf at a cleaved germanium surface in liquid helium}, author = {Zavaritskaya, E. I. and Sokol, E. G.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {43}, issue = {10}, pages = {471}, year = {1986}, doi = {}, url = {http://jetpletters.ru/ps/0/article_21390.shtml}, }