Yang Zhou, Guohua Jiang, Rijing Wang, Xiaohong Wang , Ruanbing Hu and Xiaoguang Xi. (2012). Photocatalytic Activity of Hierarchically Nanoporous BiVO4/TiO2 Hollow Microspheres. Journal of Fiber Bioengineering and Informatics. 5 (2). 181-190. doi:10.3993/jfbi06201207