Joseph E. Curtis, Sindhu Raghunandan, Hirsh Nanda, Susan Krueger, SASSIE: A program to study intrinsically disordered biological molecules and macromolecular ensembles using experimental scattering restraints, Computer Physics Communications, Volume 183, Issue 2, February 2012, Pages 382-389, ISSN 0010-4655, ( Keywords: Small-angle scattering; X-ray scattering; Neutron scattering; Intrinsically disordered proteins; Protein structure; Computer modeling