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Nadargi, D. Y., & Rao, A. V. (2009). Methyltriethoxysilane: New precursor for synthesizing silica aerogels. Journal of Alloys and Compounds, 467(1-2), 397–404. doi:10.1016/j.jallcom.2007.12.019 
10.1016/j.jallcom.2007.12.019