  References in this bibliography to items prior to 1980 are more selective than those to more recent items. For a nearly exhaustive and annotated listing of Zenonian scholarship down to 1980, consult L. Paquet, M. Roussel, and Y. Lafrance, Les Présocratiques: Bibliographie analytique (1879–1980), Volume 2, Montreal: Bellarmin/Paris: Les Belles Lettres, 1989, pp. 105–32.