@article{oai:bunkyo.repo.nii.ac.jp:00007719,
 author = {藤掛, 正邦},
 journal = {湘南フォーラム : 文教大学湘南総合研究所紀要, Shonan forum : journal of the Shonan Research Institute Bunkyo University},
 month = {Mar},
 note = {Based on the product life-cycle theory of marketing, I propose a life-cycle theory of media-content
creation—the content development three-year cycle theory. As per the work-experience of the author,
the content creation cycle is hypothesized to be completed in minimum nine years. This period
comprises three stages, each three-years long—Introduction Stage, Growth Stage, and Maturity
Stage. This theory is examined through the achievements of seven creators, that is, pioneers who
created media content; the mentors who influenced and instructed the author; and the author's
contemporary creators who share and widen the author’s perspectives and make for healthy
competitors.},
 pages = {19--47},
 title = {マスメディアが進化した昭和後期におけるコンテンツ開発の研究「導入期Ⅰ」},
 volume = {22},
 year = {2018}
}