Laramee, B., Guoning, C., Qingqing, D., A., S., R., S., & E., Z. (2012). Morse Set Classification and Hierarchical Refinement Using Conley Index. IEEE Transactions on Visualization and Computer Graphics, 18(5), pp. 767-782. doi:10.1109/tvcg.2011.107

Laramee, Bob, Chen Guoning, Deng Qingqing, Szymczak A., S. R., and Zhang E. "Morse Set Classification and Hierarchical Refinement Using Conley Index." IEEE Transactions On Visualization and Computer Graphics 18, no. 5 (2012): 767-782.

Laramee, Bob, et al. "Morse Set Classification and Hierarchical Refinement Using Conley Index." IEEE Transactions On Visualization and Computer Graphics 18.5 (2012): 767-782.