1. [6] Feng Y. Q. , The normality of Cayley digraphs with small valencies (Ph. D. Thesis, Peking University, 1997).
2. Die Ordnungen der Automorphismengruppen von Zerfallenden bizyklischen p-Gruppen;Lindenberg;berichte Gesellsch. Math. Datenverarb.,1972
3. On the normality of Cayley graphs of abelian groups;Baik;Algebra Colloq.,1998
4. Automorphism groups and isomorphisms of Cayley digraphs