CJCU
Studies on Pyrazoles (Ⅵ)——Synthesis of Pyrazolo [3,4-e]-1, 2,4-triazine and Pyrazolo [3,4-e]-1,2,3,4-tetrazine Derivatives
LU Yuan, GUI Xiu-Fang, LI Zhan-Jiang, PANG Ji-Hai, CAI Meng-Shen
Chem. J. Chinese Universities . 1993, (2): 209 -213 .