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URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::97bb51b45fccd2e618f14dab237db474
https://doi.org/10.1002/(sici)1098-2264(199909)26:1<20::aid-gcc3>3.0.co;2-6 -
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URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::907d2e61dea621ad0e24b6fbf00b52a6
https://doi.org/10.1002/(sici)1098-2264(199807)22:3<200::aid-gcc5>3.0.co;2-#