RonPub UG (haftungsbeschränkt) http://www.ronpub.com Fabian Rosenthal Sven Groppe Purposeful Searching for Citations of Scholarly Publications 27-48 2017 Open Journal of Information Systems (OJIS) 4 4 http://nbn-resolving.de/urn:nbn:de:101:1-201711266882 https://www.ronpub.com/ojis/OJIS_2017v4i1n02_Rosenthal.html https://www.ronpub.com/OJIS_2017v4i1n02_Rosenthal.pdf