00291nam a2200121Ia 4500008004100000041000800041082001200049100002000061245002300081260002900104300001900133999001700152241015s9999    xx            000 0 und d  aeng  a332 RUB  aRubini, Agustin  aFintech In A Flash  bDe GruyteraBostonc2019  a231;. P. 24 cm  c41651d41651