Grégoire, G., Knoops, E., Geiregat, D., Favart, D., & et al. (1990). A New measurement of the cross-section of the inverse muon decay reaction muon-neutrino e- ---> mu- electron-neutrino. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 247(1), 131-136. https://doi.org/10.1016/0370-2693(90)91061-F (Original work published 1990)