1. Z. Chen, On prehomogeneous vector spaces over an algebraically closed field of characteristic p, J. East China Normal Univ., Nat. Sci. Edition No. 2(1983), 11–18 [in Chinese].
2. On zeta functions and Gauss sums of prehomogeneous vector spaces;Chen;Chin. Ann. of Math.,1984
3. A classification of irreducible prehomogeneous vector spaces over an algebraically closed field of characteristic p(I);Chen;Chin. Ann. of Math.,1985
4. Z. Chen, A prehomogeneous vector space of characteristic 3, “Group Theory, Beijing 1984”, Lect. Notes in Math., 1185, Ed. by Tuan Hsio-Fu, Springer-Verlag (1986), 266–276.
5. Z. Chen, Fonction zeta associee a un espace prehomogene et sommes de Gauss, Univ. Louis Pasteur, Strasbourg.