@article{TMF_1971_8_3_a8,
     author = {D. Ya. Petrina and V. I. Skripnik},
     title = {Kirkwood--Salzburg equations for the coefficient functions of the $S$ matrix},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {369--380},
     publisher = {mathdoc},
     volume = {8},
     number = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1971_8_3_a8/}
}