"beta-decay" . . . . "Fermi's interaction" . "description of beta-decay" . "Fermi's constant" . . . "Fermi theory of beta decay" . "Fermi theory" . "Fermi interaction" . "theory of \u03B2-decay" . . "process of beta decay" . . . . "model of beta decay" . "theory of beta decay" . . "theory for beta decay" . . "Fermi coupling constant" . "Fermi constant" . . . "Fermi's interaction" . "Fermi's theory of beta decay" . . . "interaction theory" . "Fermi's interaction#Fermi constant" .