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@article{DAN_1978_239_1_a15, author = {V. B. Larin}, title = {Optimization of periodic systems}, journal = {Doklady Akademii Nauk}, pages = {67--70}, publisher = {mathdoc}, volume = {239}, number = {1}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1978_239_1_a15/} }
V. B. Larin. Optimization of periodic systems. Doklady Akademii Nauk, Tome 239 (1978) no. 1, pp. 67-70. http://geodesic.mathdoc.fr/item/DAN_1978_239_1_a15/