@article{01014292,
title = {Harmonic maps over rings.},
journal = {Georgian Mathematical Journal},
volume = {4},
year = {1997},
pages = {41-64},
doi = {10.1023/A:1022112914382},
zbl = {0881.51002},
language = {en},
url = {http://dml.mathdoc.fr/item/01014292}
}
Lashkhi, A. Harmonic maps over rings.. Georgian Mathematical Journal, Tome 4 (1997) pp. 41-64. doi : 10.1023/A:1022112914382. http://gdmltest.u-ga.fr/item/01014292/