@article{ASNSP_1990_4_17_2_273_0, author = {Pettinati, Valter and Ratto, Andrea}, title = {Existence and non-existence results for harmonic maps between spheres}, journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze}, pages = {273--282}, publisher = {Scuola normale superiore}, volume = {Ser. 4, 17}, number = {2}, year = {1990}, zbl = {0718.58017}, mrnumber = {1076254}, language = {en}, url = {http://www.numdam.org/item/ASNSP_1990_4_17_2_273_0/} }