Cho G.C. Constraints on four-Fermi contact interactions from low-energy electroweak experiments / G. C. Cho, K. Hagiwara, S. Matsumoto, 1997. - 26 kol. - Текст : непосредственный.
Cho G.C. String unification scale and the hyper-charge Kac-Moody level in the non-supersymmetric standard model / G. C. Cho, K. Hagiwara, 1997. - 13 p. - Текст : непосредственный.