RT Book, Whole DB /z-wcorg/ DS http://worldcat.org ID 058575644 LA German T1 Die Urkunden Friedrichs I. A1 Friedrich, Appelt, Heinrich., Herkenrath, Rainer Maria., PB Hahn PP Hannover YR 1990 SN 3775251642 9783775251648 3775251650 9783775251655