Electronic Gneuss-Lapidge Book: Singer (1927) Referenced in: st: 549 - Oxford, Bodleian Library, Bodley 130 (S.C. 27609) 39-43 mss: 831.4 - Herrnstein near Siegburg, Bibliothek der Grafen Nesselrode [formerly at Herten], 192, fols. 1-20 39-41