@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040071,
 author = {JIMBO, Shuichi and KOSUGI, Satoshi},
 issue = {3},
 journal = {Journal of mathematical sciences, the University of Tokyo},
 month = {Nov},
 pages = {269--414},
 title = {Spectra of domains with partial degeneration},
 volume = {16},
 year = {2009}
}