@article{PismaZhETF.58.844, title = {Angular distribution of ultracold neutrons produced by scattering of cold neutrons in superfluid $^4He$}, author = {Lamoreaux, S. K. and Golub, R.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {58}, issue = {10}, pages = {844}, year = {1993}, doi = {}, url = {http://jetpletters.ru/ps/0/article_18017.shtml}, }