Small-Angle Scattering of X-Rays A Guinier and G Fournet John Wiley & Sons, New York (1955)

P Stckel, R May, I Strell, Z Cejka, W Hoppe, H Heumann, W Zillig and H Crespi Eur. J. Biochem., 112, (1980), 411-417

G Porod in Small Angle X-ray Scattering (editors) O Glatter and O Kratky Academic Press (1982)

Structure Analysis by Small-Angle X-Ray and Neutron Scattering L.A Feigin and D I Svergun Plenum Press, New York (1987)

S Hansen J. Appl. Cryst. 23, (1990), 344-346

S J Henderson Biophys. J. 70, (1996), 1618-1627

B C McAlister and B P Grady J. Appl. Cryst. 31, (1998), 594-599

S R Kline J Appl. Cryst. 39(6), (2006), 895

Also see the references at the end of the each model function descriptions.