[5] Prozorov R., Ni N., Tanatar M., Kogan V.G., Gordon R.T., Martin E., Blomberg C., Prommapan P., Yan J.Q., Budko S.L., Canfield P.C., Phys. Rev. B, 78 (2008), 224506. http://dx.doi.org/10.1103/PhysRevB.78.22450610.1103/PhysRevB.78.224506
[15] Askerzade I., Unconventional Superconductors: Anisotropy and Multiband Effects, in: Hull R., Jagadish C., Osgood R.M., Parisi J., Wang Z.M., Uchida S. (Eds), Springer Series in Materials Science, Vol. 153, Springer-Verlag, 1st ed., 2012. 10.1007/978-3-642-22652-6