Milhemet kodesh u-martirologyah: kovets hartsa'ot she-hushme'u be-kenes ha-ehad asar le-iyun be-historyah (Tet - Yud be-Nisan 726). Ha-Ir veha-Kehilah: kovets hartsa'ot she-hushme'u be-kenes ha-shena'im-asar le-iyun be-historyah/ Holy War and Martyrology: Lectures delivered at the eleventh convention of the Historical Society of Israel - March 1966 & Town and Community: Lectures delivered at the twelth convention of the Historical Society of Israel - December 1966.