Rettberg, F., Witt, P. (2021), Access to government support for innovation – empirical evidence from the Ruhr area in Germany, Journal of Enterprising Culture, Vol. 29 (2), pp. 161-182.

Döring, H., Witt, P. (2020), Knowledge management in family businesses - empirical evidence from Germany, Knowledge Management Research & Practice, Vol. 18 (2), pp. 175-187.

Bix, S., Witt, P. (2020), Introducing constraints to improve new product development performance, Research-Technology Management, Vol. 63 (5), pp. 29-37.