@article{oai:ynu.repo.nii.ac.jp:00008679,
 author = {Fukuda, Tomotaka and Negami, Seiya},
 issue = {1},
 journal = {Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学},
 month = {Sep},
 pages = {47--70},
 title = {The distinguishing numbers of 4-regular quadrangulations on the Klein bottle},
 volume = {55},
 year = {2009}
}