Jesse O. Omamogho, John P. Hanrahan, Joe Tobin, Jeremy D. Glennon, Structural variation of solid core and thickness of porous shell of 1.7µm core–shell silica particles on chromatographic performance: Narrow bore columns, Journal of Chromatography A, Volume 1218, Issue 15, 15 April 2011, Pages 1942-1953, ISSN 0021-9673 http://www.sciencedirect.com/science/article/pii/S0021967310016559