GELSEMIUM ALKALOIDS Ⅰ. REINVESTIGATION OF THE ALKALOIDS OF KOU-WEN, GELSEM IUM ELEGANS BENTH. AND THE CONSTITUTION OF KOUMINE
LIU CHU-TSIN-TSIN(C. T. LIU), LOH JEN-YUNG, CHU TSE-TSIN (T. T. CHU), WANG CHI-HAO
Acta Chimica Sinica . 1961, (1): 47 -58 .