Pettersson, H., Anz. Akad. Wiss. Wien, Math. Naturwiss. Klasse, 127 (1937). Koczy, F. F., Picciotto, E., Poulaert, J., and Wilgain, S., Geochim. et Astrochim. Acta ...
VARIANCES add 1, for certain independent processes which, by virtue of an elementary random event, contribute directly to the variance. Lateral diffusion is not such a process. The variance is caused ...