Url: https://ir.lib.vntu.edu.ua/bitstream/handle/123456789/4975/Vivchennya_obsyagu_ponyattya_yuxtapozit.pdf?sequence=1&isAllowed=y#:~:text=%D0%B2%20%D0%BA%D0%BE%D0%BD%D1%86%D0%B5%D0%BF%D1%86%D1%96%D1%97%20%D0%9D.-,%D0%A4.,%5B%D0%9A%D0%BB%D0%B8%D0%BC%D0%B5%D0%BD%D0%BA%D0%BE%201984%3A%206%5D

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