5GUO Guang hua 1,R.Z. Levitin 2,N.P. Kolmakova 3 (1 Department of Applied Physics and Heat Energy Engineering, Central South University of Technology, Changsha 410083, China,2 Department of Physics, M. V. Lomonosov Moscow State University, 1198.Field-induced Magnetic Phase Transitions in FerrimagnetGdMn_2Ge_2: H-T Magnetic Phase Diagrams[J].Journal of Central South University,2000,12(2):107-110.