Wühr, Martin, Yao Chen, Sophie Dumont, Aaron Groen, Daniel Needleman, Adrian Salic, and Timothy Mitchison. (2008) 2008. “Evidence for an Upper Limit to Mitotic Spindle Length.”. Curr Biol 18 (16): 1256-61. doi:10.1016/j.cub.2008.07.092.