Formula subsets of the ordered group of integers
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1977), pp. 105-107
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@article{IVM_1977_8_a15,
author = {A. B. Livchak},
title = {Formula subsets of the ordered group of integers},
journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
pages = {105--107},
publisher = {mathdoc},
number = {8},
year = {1977},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/IVM_1977_8_a15/}
}
A. B. Livchak. Formula subsets of the ordered group of integers. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1977), pp. 105-107. http://geodesic.mathdoc.fr/item/IVM_1977_8_a15/