@incollection{DegenHahnSpiller2019, author = {Matthias Degen and David Hahn and Ralf Spiller}, title = {How CEOs from Europe and the US Communicate via Twitter}, booktitle = {Twitter. Global Perspectives, Uses and Research Techniques}, editor = {Innocent Chiluwa and Gwen Bouvier}, isbn = {978-1-53615-307-1}, year = {2019}, }