The following is a paper by H. Aspden published in Lettere al Nuovo Cimento, v. 39, pp. 271-275 (1984).
Abstract: It is shown that a cavity-resonance model by which the muon/electron mass ratio was recently determined as 206.7683078 yields also a muon g-factor of 2(1.001165918), both of these quantities being in accord with their measured values.