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http://dreamwork.org.ua/%d0%b6%d0%b0%d0%bd-%d1%83%d1%80%d0%b8-%d0%b8%d0%bd%d1%82%d0%b5%d1%80%d0%b2%d1%8c%d1%8e-2004/
Жан Ури, Гетерогенность (Ла Борд, 2004)