R. B. King, E. R. Canfield (1992-08-01), "Icosahedral symmetry and the quintic equation", Computers & Mathematics with Applications, vol. 24, no. 3, pp. 13–28, doi:10.1016/0898-1221(92)90210-9, ISSN0898-1221
R. B. King, E. R. Canfield (1992-08-01), "Icosahedral symmetry and the quintic equation", Computers & Mathematics with Applications, vol. 24, no. 3, pp. 13–28, doi:10.1016/0898-1221(92)90210-9, ISSN0898-1221