الإتاحة: https://doi.org/10.1016/j.jsb.2011.02.003Testhttps://orbi.uliege.be/handle/2268/113351Test
الإتاحة: https://doi.org/10.1006/excr.1993.1110Testhttps://orbi.uliege.be/handle/2268/29303Test