الإتاحة: https://doi.org/10.1016/j.physletb.2014.11.026Testhttp://hdl.handle.net/11567/812329Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f021727bd2caeceda4a2c04f72d3c2eTest
الإتاحة: https://doi.org/10.1088/1748-0221/9/10/P10009Testhttp://hdl.handle.net/11567/812276Test