@article{oai:tsukuba.repo.nii.ac.jp:00015767, author = {Choi, Soon Meen}, issue = {2}, journal = {Tsukuba Journal of Mathematics}, month = {Dec}, pages = {351--367}, title = {On the Gauss map of surfaces of revolution in a 3-dimensional Minkowski space}, volume = {19}, year = {1995} }