Yuichi Futa, Hiroyuki Okazaki, Yasunari Shidama. Submodule of free Z-module. Formalized Mathematics, 21(4):273-282, 2013. [doi]
@article{FutaOS13-0,
title = {Submodule of free Z-module},
author = {Yuichi Futa and Hiroyuki Okazaki and Yasunari Shidama},
year = {2013},
doi = {10.2478/forma-2013-0029},
url = {http://dx.doi.org/10.2478/forma-2013-0029},
researchr = {https://researchr.org/publication/FutaOS13-0},
cites = {0},
citedby = {0},
journal = {Formalized Mathematics},
volume = {21},
number = {4},
pages = {273-282},
}