@article{TMF_1972_13_1_a10,
     author = {N. N. Bogolyubov (Jr.)},
     title = {On a method of calculating correlation functions},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {131--139},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1972_13_1_a10/}
}