Chao Tse-yuan(赵志远)、Chou Yun-lee(周韵丽)、Young Pao-tsin(杨保津)、Chou Tsan-quo(赵承嘏),Studies on the Alkaloids of Embryo Loti, Nelumbo Nucifera Gaertn. Ⅰ. Isolation and Characterisation of Liensinine,Scientia Sinica,1962,11(2):215-219