SCHNABEL, Jan; CARTARIUS, Holger; MAIN, Jörg; WUNNER, Günter; HEISS, Walter Dieter. SIMPLE MODELS OF THREE COUPLED PT -SYMMETRIC WAVE GUIDES ALLOWING FOR THIRD-ORDER EXCEPTIONAL POINTS. Acta Polytechnica, [S. l.], v. 57, n. 6, p. 454–461, 2017. DOI: 10.14311/AP.2017.57.0454. Disponível em: https://ojst.is.cvut.cz/ojs/index.php/ap/article/view/4423.. Acesso em: 24 may. 2025.