Natures Numbers - The Unreal Reality Of Mathematics
Ian Nicholas Stewart
The Popes and the Baltic Crusades: 1147-1254
Iben Fonnesberg-Schmidt
The Medieval Manichee: A Study of the Christian Dualist Heresy
Steven Runciman
Mathematical Analysis
Tom M. Apostol
Model Generation for Natural Language Interpretation and Analysis
Karsten Konrad
Alles oder Nichts - Der große Wurf der Päpste
Andreas Salcher, Johannes Huber