الوصول الحر: https://www.jstor.org/stable/1942569Test
الإتاحة: https://doi.org/10.1210/jc.2013-1589Testhttps://publications.rwth-aachen.de/record/232534Testhttps://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-081471%22Test