Rijkers, H.; Boogaarts, J. (ed.), Tympano, Choro & Organo. Liber festivus in honorem Jan Boogaarts, pp. 116-124 Rijkers, H.; Boogaarts, J. (ed.), Tympano, Choro & Organo. Liber festivus in honorem Jan Boogaarts, 116-124. Zutphen : Walburg Pers STARTPAGE=116;ENDPAGE=124;TITLE=Rijkers, H.; Boogaarts, J. (ed.), Tympano, Choro & Organo. Liber festivus in honorem Jan Boogaarts