eng Rollnik, H Introduction to weak neutral currents and unified theories of electromagnetic and weak interactions XX BONN-HE-75-5 1975 http://cds.cern.ch/record/696924 http://cds.cern.ch/record/696924 Symp. on interaction studies in nuclei Mainz 17-20 Feb 1975 freMartin, FIntroduction to the unification of weak and electromagnetic interactionsParticle Physics - PhenomenologyReviews the present status of weak interaction phenomenology and discusses the basic principles of gauge theories. The author shows how the Higgs mechanism can give massive quanta of interaction. The so- called 'Weinberg-Salam' model, which unifies electromagnetic and weak interactions, is described. Unification with strong interactions and gravity is mentioned. (4 refs).1980http://cds.cern.ch/record/881860http://cds.cern.ch/record/881860oai:cds.cern.ch:881860 eng Boudjema, F Zeppenfeld, Dieter The standard model of particle physics: an introduction to the theory Particle Physics - Phenomenology The key concepts of gauge invariance and spontaneous symmetry breaking that helped build the standard model of particle physics are introduced. A short description of radiative corrections that have made the model pass all precision tests, in particular those from LEP, is presented. (32 refs). 2002 http://cds.cern.ch/record/623621 http://cds.cern.ch/record/623621