@article{oai:kansai-u.repo.nii.ac.jp:00019010,
 author = {河田, 惠昭 and Kawata, Yoshiaki},
 journal = {社会安全学研究 = Journal of societal safety sciences},
 month = {Mar},
 pages = {i--iv},
 title = {巻頭言},
 volume = {11},
 year = {2021}
}