J. E. Tanner & E. O. Stejskal (2003). "Restricted Self-Diffusion of Protons in Colloidal Systems by the Pulsed-Gradient, Spin-Echo Method". The Journal of Chemical Physics. 49 (4): 1768. Bibcode:1968JChPh..49.1768T. doi:10.1063/1.1670306.
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J. E. Tanner & E. O. Stejskal (2003). "Restricted Self-Diffusion of Protons in Colloidal Systems by the Pulsed-Gradient, Spin-Echo Method". The Journal of Chemical Physics. 49 (4): 1768. Bibcode:1968JChPh..49.1768T. doi:10.1063/1.1670306.