Kazuhisa Nakasho, Hiroyuki Okazaki, Hiroshi Yamazaki, Yasunari Shidama. Equivalent Expressions of Direct Sum Decomposition of Groups1. Formalized Mathematics, 23(1):67-73, 2015. [doi]
@article{NakashoOYS15,
title = {Equivalent Expressions of Direct Sum Decomposition of Groups1},
author = {Kazuhisa Nakasho and Hiroyuki Okazaki and Hiroshi Yamazaki and Yasunari Shidama},
year = {2015},
url = {http://www.degruyter.com/view/j/forma.2015.23.issue-1/forma-2015-0006/forma-2015-0006.xml},
researchr = {https://researchr.org/publication/NakashoOYS15},
cites = {0},
citedby = {0},
journal = {Formalized Mathematics},
volume = {23},
number = {1},
pages = {67-73},
}