Perkins, S. J., Smith, K. F., Kilpatrick, J. M., Volanakis, J. E., & Sim, R. B. (1993). Modelling of the serine-proteinase fold by X-ray and neutron scattering and sedimentation analyses: Occurrence of the fold in factor D of the complement system.

Perkins, S J., K F. Smith, J M. Kilpatrick, J E. Volanakis, and R B. Sim. Modelling of the Serine-proteinase Fold By X-ray and Neutron Scattering and Sedimentation Analyses: Occurrence of the Fold in Factor D of the Complement System. 1993.

Perkins, S J., et al. Modelling of the Serine-proteinase Fold By X-ray and Neutron Scattering and Sedimentation Analyses: Occurrence of the Fold in Factor D of the Complement System. 1993.