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1رسالة جامعية
الإتاحة: https://doi.org/10.18154/RWTH-2020-07960Test
https://publications.rwth-aachenTest.de/record/794904
https://publications.rwth-aachenTest.de/search?p=id:%22RWTH-2020-07960%22 -
2رسالة جامعية
الإتاحة: https://doi.org/10.18154/RWTH-2020-04225Test
https://publications.rwth-aachenTest.de/record/787719
https://publications.rwth-aachenTest.de/search?p=id:%22RWTH-2020-04225%22 -
3دورية أكاديمية
الإتاحة: https://doi.org/10.1002/etc.1851Test
https://juser.fz-juelichTest.de/record/16336
https://juser.fz-juelichTest.de/search?p=id:%22PreJuSER-16336%22 -
4دورية أكاديمية
الإتاحة: https://doi.org/10.1007/s11356-008-0056-6Test
https://publications.rwth-aachenTest.de/record/131946
https://publications.rwth-aachenTest.de/search?p=id:%22RWTH-CONV-013070%22