الوصول الحر: https://lup.lub.lu.se/record/3636635Testhttp://dx.doi.org/10.1016/j.physletb.2013.01.024Test
الإتاحة: https://doi.org/10.1016/j.physletb.2013.01.024Testhttps://avesis.metu.edu.tr/publication/details/6136ce8a-be37-4d9b-a927-4fe5fd210e24/oaiTest