CJCU
STUDIES ON NITROXIDES-Ⅲ-AN MO CALCULATION OF 2,2,6,6-TETRAMETHYL-4-HYDROXYPIPERIDINE-1-OXYL FREE RADICAL
Liu Youcheng, Liu Zhongli, Wang Yukun
Chem. J. Chinese Universities . 1981, (4): 477 -483 .