Accurate Numerical Algorithms Research Reports Esprit, nr. 1 Editat de Christian Ullrich et al. 16 aug 1989 Paperback Preț: 390.13 lei 6-8 săpt.
Forecasting and Hedging in the Foreign Exchange Markets Autor Christian Ullrich 12 iun 2009 Paperback Preț: 386.76 lei 6-8 săpt.