GCM+GOA Electromagnetic Multipole Transition Operators and Symmetries of Generating Functions Góźdź, A. ; Pędrak, A. ; Dudek, J. Abstract Publication: Acta Physica Polonica B Pub Date: 2017 DOI: 10.5506/APhysPolB.48.281 Bibcode: 2017AcPPB..48..281G