Steeds, J., R. Vincent, W. Vine, P. Spellward, and D. Cherns. “xploratory xperiments in onvergent eam oherent lectron iffraction”. cta icroscopica, ol. 1, no. 2, Nov. 1992, pp. 1-14, https://acta-microscopica.org/acta/article/view/91.