@article{02237563,
title = {An equivalent flat condition.},
journal = {Sibirskij Matematicheskij Zhurnal},
volume = {44},
year = {2003},
pages = {1046-1050},
zbl = {1080.53028},
language = {en},
url = {http://dml.mathdoc.fr/item/02237563}
}
Kim, Hobum; Kim, Jaeman. An equivalent flat condition.. Sibirskij Matematicheskij Zhurnal, Tome 44 (2003) pp. 1046-1050. http://gdmltest.u-ga.fr/item/02237563/