WASET
Wu, J. , Hu, R. , Yue, J. , Yang, Z. , Zhang, L.. "Study on the Derivatization Process Using N-O-bis-(trimethylsilyl)-trifluoroacetamide, N-(tert-butyldimethylsilyl)-N-methyltrifluoroace tamide, Trimethylsilydiazomethane for the Determination of Fecal Sterols by Gas Chromatography-Mass Spectrometry". World Academy of Science, Engineering and Technology, Open Science Index 37, International Journal of Chemical and Molecular Engineering (2010), 4(1), 137 - 140.