@article{MMO_1955_4_a1,
     author = {G. A. Freiman},
     title = {An elementary method of solution of problems on the partition of numbers into an unbounded number of summands},
     journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {113--124},
     publisher = {mathdoc},
     volume = {4},
     year = {1955},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMO_1955_4_a1/}
}