CRCU
Ab Initio Calculations on Nitramide and Its Methyl Derivatives(Ⅱ)--The Harmonic Force Fields and Vibrational Spectra of Nitramide and Its Isotopic Derivatives
FAN Kang-nian, WANG Wen-ning, XTAO He-ming, LI Yong-fu
Chemical Research in Chinese Universities . 1992, (4): 415 -421 .