Citation: Fr. Erkens, Acts of penitence in the days of the Black Death: The flagellant processions (Late medieval Europe), Z HIST FORS, 26(4), 1999, pp. 483-513
Citation: Fr. Erkens, The formation of the Electoral College, 1198-1298. The 700th anniversary of the first union of the seven electors, HIST Z, 268(3), 1999, pp. 752-753