Correction to: Empirical Software Engineering

https://doi.org/10.1007/s10664-020-09868-x

To fulfill the contractual requirement of the Compact agreement, the following funding note has to be added and placed in the Funding section of the original article: Open access funding provided by Università degli Studi di Roma Tor Vergata within the CRUI-CARE Agreement.

The original article has been corrected.