Ingersoll, R. V., Bullard, T. F., Ford, R. L., Grimm, J. P., Pickle, J. D., Sares, S. W. (1984). The Effect of Grain Size on Detrital Modes: A Test of the Gazzi-Dickinson Point-Counting Method, Journal of Sedimentary Petrology, 54 (1), 103-116, Society of Economic Paleontologists and Mineralogists