%0 Journal Article %A Fernández-Rañada, Antonio %T Classical system of nonlinear Dirac andKlein-Gordon fields %D 1976 %@ 0033-068X %U https://hdl.handle.net/20.500.14352/64913 %X The classical system of interacting Dirac and pseudoscalar fields is studied. It is found that the lowest energy kink describes with reasonable accuracy the main properties of the nucleons. %~