URN:NBN:SI:DOC-SXF1HK0Q2015Nevzlin, BorisZagirnyak, ValentinaZahorulko, Veronikadocuments/doc/S/URN_NBN_SI_doc-SXF1HK0Q_001.pdfdocuments/doc/S/URN_NBN_SI_doc-SXF1HK0Q_001.txt8articleiss. 2str. 11-1610242202521855-5748URN:NBN:SI:doc-SXF1HK0QengFakulteta za energetikoJET on-lineJournal of energy technologyInCconditions for the existence of higher-order invariantsdifferential transformationsdipolielectromagnetic invariantselektromagnetne invariantefour-element dipoleDetermination of the conditions for the existence of higher-order differential electromagnetic invariantsDoločitev pogojev za obstoj diferencialnih elektromagnetnih invariant višjega reda