Yi, G.-R., Moon, J.H., Manoharan, V.N., Pine, D.J. and Yang, S.-M. (2002) Packings of Uniform Microspheres with Ordered Macropores Fabricated by Double Templating. Journal of the American Chemical Society, 124, 13354-13355.
http://dx.doi.org/10.1021/ja027325v