Duplenko, Yurii2019-06-012019-06-012018Duplenko Yu. K. Retrospective survey of ethic conceptions' development in system "human - environment" / Duplenko Ju. K. // The idea of deep ecology, its history and current development / Y. K. Duplenko. - 2018. - P. 2-5.https://ekmair.ukma.edu.ua/handle/123456789/15787The chapter of the book entitled "The idea of deep ecology, its history and current development" (2018).enethic conceptions' developmentethic conceptionssystem "human - environment"environmentecologyecological ethicsbook chapterBook chapter