Smith P.R. et al., 1983
Smith P.R. , Fowler W.E. , Pollard T.D. , Aebi U. Structure of the actin molecule determined from electron micrographs of crystalline actin sheets with a tentative alighnment of the molecule in the actin filament. J. Mol. Biol. , 167, 641-660, 1983 .