@book{ Solr-3308383, title = {Ars Gregoriana. Supplementum 1-12.}, editor = {Catholic Church}, editor = {Kirchmeyer, Helmut}, editor = {Heckenbach, Willibrord}, editor = {Hodes, Karlheinrich}, editor = {Robert-Schumann-Hochschule Düsseldorf}, editor = {Benediktinerinnen-Abtei Mariendonk}, address = {Düsseldorf ; Wiesbaden}, publisher = {Motette Ursina Schallplatten}, note = {Motette Ursina Schallplatten: M 50310, M 50320 (3 discs), M 50330, M 50340, M 50350, M 50360, M 50370, M 50380, M 50390, M 50400, M 50410, M 50420.}, note = {For various vocal soloists and choruses, unaccompanied.}, note = {"DMM, Direct metal mastering"--Containers.}, note = {Program notes in German on containers and inserted; includes historical, liturgical, and musical writings in Latin with German translation.}, note = {Also available as compact discs.}, }