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List of Articles Publication and expansion of free innovation Open Access Article Abstract Page Full-Text 1 - analytical - rational explanation (definition, concept, history, differentiation, similarity, propagation and expansion) of free innovation Ali Asghar Saadabadi Mohammad Sadegh khayyatian فاطمه محمدی اترگله 20.1001.1.22286047.1400.20.67.6.8
