@article{PismaZhETF.25.527, title = {Photoionization of helium from the excited state $4p^1P_1$}, author = {Belik, V. P. and Bobashev, S. V. and Shmaenok, L. A.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {25}, issue = {11}, pages = {527}, year = {1977}, doi = {}, url = {http://jetpletters.ru/ps/0/article_21478.shtml}, }