@article{oai:nagano.repo.nii.ac.jp:00000643,
 author = {永井, 彰},
 issue = {4},
 journal = {長野大学紀要, BULLETIN　OF　NAGANO　UNIVERSITY},
 month = {Mar},
 note = {application/pdf},
 pages = {85--97},
 title = {N・ルーマンのコミュニケーション概念をめぐって},
 volume = {13},
 year = {1992}
}