@article{DAN_1957_115_5_a10, author = {N. N. Bogolyubov and S. M. Bilenki and A. A. Logunov}, title = {Dispersion relationships in the cases of a weak interaction}, journal = {Doklady Akademii Nauk}, pages = {891--893}, year = {1957}, volume = {115}, number = {5}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1957_115_5_a10/} }