@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040038, author = {Tiba, Yusaku}, issue = {3}, journal = {Journal of mathematical sciences, the University of Tokyo}, month = {Dec}, pages = {325--354}, title = {Holomorphic Curves into the Product Space of the Riemann Spheres}, volume = {18}, year = {2011} }