RonPub UG (haftungsbeschränkt) http://www.ronpub.com Xenofon Chatziliadis Eleni Tzirita Zacharatou Steffen Zeuch Volker Markl Monitoring of Stream Processing Engines Beyond the Cloud: An Overview 71-82 2021 Open Journal of Internet Of Things (OJIOT) 7 7 http://nbn-resolving.de/urn:nbn:de:101:1-2021082919333128288412 https://www.ronpub.com/ojiot/OJIOT_2021v7i1n07_Chatziliadis.html https://www.ronpub.com/OJIOT_2021v7i1n07_Chatziliadis.pdf