Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{IM_1979__51_142638, author = {Toshikazu Sunada}, title = {Rigidity of {Certain} {Harmonic} {Mappings.}}, journal = {Inventiones mathematicae}, pages = {297--307}, publisher = {mathdoc}, volume = {51}, year = {1979}, zbl = {0418.31005}, url = {http://geodesic.mathdoc.fr/item/IM_1979__51_142638/} }
Toshikazu Sunada. Rigidity of Certain Harmonic Mappings.. Inventiones mathematicae, Tome 51 (1979), pp. 297-307. http://geodesic.mathdoc.fr/item/IM_1979__51_142638/