Hollowood, T., & Evans, J. M. (1994). The exact mass-gap of the supersymmetric CPn−1 sigma model. Physics Letters B, "B343"(1-4), pp. 198-206. doi:10.1016/0370-2693(94)01478-U

Hollowood, Timothy, and Jonathan M. Evans. "The Exact Mass-gap of the Supersymmetric CPn−1 Sigma Model." Physics Letters B "B343", no. 1-4 (1994): 198-206.

Hollowood, Timothy, and Jonathan M. Evans. "The Exact Mass-gap of the Supersymmetric CPn−1 Sigma Model." Physics Letters B "B343".1-4 (1994): 198-206.