W\"olfli's experiment about K^-2→L^-2 two-electron, one-photon transitions was criticized by Nagel et al. in a recent paper. In the present Comment I discuss arguments of Nagel et al. and show that W\"olfli's interpretation about cooperative x-ray transition is valid.
No takes yet. Share an insight, caveat, or question.
J. P. Briand (1976) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: