Data regarding data showcase papers published in the Mining Software Repositories (MSR) conference. The following data files are included. citing_dp_dois_citations.txt: Strong and weak citations of (strong and weak) citation papers data_paper_clustering.csv: The clustering process of MSR data papers data_paper_clusters.csv: Clusters of MSR data papers data_papers.bib: Bibliographic details of MSR data papers, along with their assigned clusters (field 'cluster') and strong citations (field 'usedby') 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 self-citations.txt: Strong citations of MSR data papers by their authors strong_citation_classification.csv: The classification process of strong citation papers according to the SWEBOK knowledge areas strong_citation_fields.csv: SWEBOK knowledge areas of strong citation papers strong_citations.bib: Bibliographic details of strong citation papers survey_questionnaire.pdf: The final survey questionnaire survey_responses.csv: Anonymized 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