ebInterface 2015 - electronic invoicingChristian HuemerTopicTerm01.01.2015 - 31.12.2017FinishedChristian HuemerAo.Univ.Prof. Mag.rer.soc.oec. Dr.rer.soc.oec.Mail: huemer@big.tuwien.ac.atPhone: +43 (1) 58801 18882Office hours: see profile