TY - RPRT A1 - Böhle, Knud A1 - Krüger, Malte A1 - Herrmann, C. A1 - Carat, Gérard A1 - Maghiros, Ioannis T1 - Electronic Payment Systems – Strategic and Technical Issues – Background Paper No. 1, Electronic Payment Systems Observatory (ePSO), Sevilla KW - Elektronischer Zahlungsverkehr Y1 - 2000 VL - Dezember 2000 ER -