Giansiracusa, J., & Giansiracusa, J. (2011). The framed little 2-discs operad and diffeomorphisms of handlebodies. Journal of Topology, 4(4), pp. 919-941. doi:10.1112/jtopol/jtr021

Giansiracusa, Jeffrey, and J. Giansiracusa. "The Framed Little 2-discs Operad and Diffeomorphisms of Handlebodies." Journal of Topology 4, no. 4 (2011): 919-941.

Giansiracusa, Jeffrey, and J. Giansiracusa. "The Framed Little 2-discs Operad and Diffeomorphisms of Handlebodies." Journal of Topology 4.4 (2011): 919-941.