@article{oai:kansai-u.repo.nii.ac.jp:00011103,
 author = {Ebara, Hiroyuki and Nakano, Hideo and Nakanishi, Yoshiro and Fukuyama, Noriyuki},
 issue = {3},
 journal = {IEICE Transactions Information and Systems},
 month = {May},
 pages = {253--257},
 title = {A Practical Algorithm for Computing the Roundness},
 volume = {E75-D},
 year = {1992}
}