@article{ZNSL_2015_433_a3,
     author = {N. M. Bogoliubov},
     title = {Time-dependent correlation functions for a~bimodal {Bose{\textendash}Hubbard} model},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {65--77},
     year = {2015},
     volume = {433},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2015_433_a3/}
}