@article{GMJ_1997__4_1_47802, author = {Lashkhi, A.}, title = {Harmonic maps over rings.}, journal = {Georgian Mathematical Journal}, pages = {41--64}, publisher = {mathdoc}, volume = {4}, number = {1}, year = {1997}, zbl = {0881.51002}, language = {en}, url = {http://geodesic.mathdoc.fr/item/GMJ_1997__4_1_47802/} }