Itô, D.Ferreira, P.Leal2022-04-292022-04-291972-12-01Lettere al Nuovo Cimento, v. 5, n. 15, p. 998-1000, 1972.0375-930X1827-613Xhttp://hdl.handle.net/11449/231177998-1000engPhenomenological mass operator for hadrons. - IArtigo10.1007/BF027988682-s2.0-51849169889