Data regarding data showcase papers published in the Mining Software Repositories (MSR) conference. The following data files are included. strong_citation_table.csv: SWEBOK knowledge areas of strong citation papers citing_dp_dois_citations.txt: Strong and weak citations of (strong and weak) citation papers data_papers.bib: MSR data papers with their assigned clusters and strong citations dp_dois_citations.txt: Strong and weak citations of MSR data papers msr-all: Bibliographic details of all MSR (data and non-data) papers ndp_dois_citations.txt: Strong and weak citations of MSR non-data papers ndp_rand_dois_citations.txt: Strong and weak citations of a randomly chosen MSR non-data paper weighted sample README.txt: Description of the data set self-citations.csv: Strong citations of MSR data papers by their authors strong_citations.bib: Bibliographic details of strong citation papers survey_responses.csv: Responses of the final survey questionnaire (Email addresses have been excluded for privacy reasons.) weak_citations_notes.bib: Weak citations of MSR data papers and the use they make