@article{oai:niigata-u.repo.nii.ac.jp:00002088,
 author = {Kojima, Hideo},
 issue = {4},
 journal = {Journal of the Mathematical Society of Japan},
 month = {},
 note = {In this article we study nonsingular rational open surfaces of logarithmic　Kodaira dimension zero with connected boundaries at infinity defined over an algebraically　closed field of arbitrary characteristic. We establish a classification theory of nonsingular　a½ne surfaces of logarithmic Kodaira dimension zero and give a characterization of A1 × A1 in arbitrary characteristic.},
 pages = {933--955},
 title = {Open surfaces of logarithmic Kodaira dimension zero in arbitrary characteristic},
 volume = {53},
 year = {2001}
}