@article{oai:ismrepo.ism.ac.jp:00032565,
 author = {牛沢, 賢二 and Ushizawa, Kenji},
 issue = {1},
 journal = {統計数理研究所彙報},
 month = {Mar},
 pages = {45--52},
 title = {変動係数の分布の近似とその評価},
 volume = {27},
 year = {1980}
}