@article{oai:ismrepo.ism.ac.jp:00032846,
 author = {河田, 龍夫 and Kawata, Tatsuo},
 issue = {10},
 journal = {統計数理研究所講究録},
 month = {Nov},
 pages = {269--294},
 title = {記號解析に就て},
 volume = {1},
 year = {1944}
}