https://www.emerald.com/insight/content/doi/10.1108/OIR-04-2018-0151/full/html
DHopf's tagged items 03/22/2021
https://link.springer.com/article/10.1007%2Fs12109-020-09771-9
DHopf's tagged items 11/25/2020
https://link.springer.com/article/10.1007%2Fs11192-020-03734-9
DHopf's tagged items 10/19/2020
https://www.springernature.com/gp/open-research/journals-books/books/the-oa-effect
DHopf's tagged items 11/07/2017
https://f1000research.com/articles/8-266/v1
DHopf's tagged items 04/20/2019
https://link.springer.com/article/10.1007%2Fs11192-016-2160-6
DHopf's tagged items 09/13/2018
https://quod.lib.umich.edu/j/jep/3336451.0016.103?view=text;rgn=main
https://peerj.com/articles/175/
DHopf's tagged items 10/01/2013