The Catholic Tradition and Modern DemocracySIGMUND, P. E.The Review of politics. 1987, Vol 49, Num 4, pp 530-548, issn 0034-6705Article

The Catholic Tradition and Modern Democracy in Religion and Politics in the American MilieuSIGMUND, P. E; ROBINSON, J.sd, pp 3-26Book

Religion and the State : the Struggle for Legitimacy and PowerTHOMPSON, K. W; SIGMUND, P. E; WALASZEK, Z et al.The Annals of the American Academy of Political and Social Science. 1986, Num 483, pp 9-156, issn 0002-7162Article

Konsens, Repräsentation und die Herrschaft der Mehrheit bei Marsilius und Cusanu_s = Consent, representation and the power of the majority by Marsilius and CusanusSIGMUND, P. E; STRUVE, U.Mitteilungen und Forschungsbeiträge der Cusanus-Gesellschaft. 1998, Vol 24, pp 195-204, issn 0590-451XArticle