481
482
483
484
485
486
487
488
489
490
by Wojtecki, Dieter
Published 1971
“...Quellen und Studien zur Geschichte des östlichen Europa...”Published 1971
Book
491
492
493
494
495
496
497
by Sturm, Heribert
Published 1984
Published 1984
Book
498
by Leistner, Bernd
Published 2011
Published 2011
Book
499
500