@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040376,
 author = {Gurjar, R. V.},
 issue = {1},
 journal = {Journal of mathematical sciences, the University of Tokyo},
 month = {},
 note = {application/pdf},
 pages = {137--180},
 title = {$π_1$ of smooth points of a log del Pezzo surface is finite : I},
 volume = {1},
 year = {1994}
}