Voir la notice de l'article dans European Digital Mathematics Library
@article{JRAM_1984__346_152588, author = {Chaohao Gu}, title = {On the harmonic maps from {R} 1,1 to {S} 1,1.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {101--109}, publisher = {mathdoc}, volume = {346}, year = {1984}, zbl = {0513.58022}, url = {https://geodesic-test.mathdoc.fr/item/JRAM_1984__346_152588/} }
Chaohao Gu. On the harmonic maps from R 1,1 to S 1,1.. Journal für die reine und angewandte Mathematik, Tome 346 (1984), pp. 101-109. https://geodesic-test.mathdoc.fr/item/JRAM_1984__346_152588/