found: Sesja Naukowa "Kościół w II Rzeczypospolitej" (1975 : Instytut Historii Kościoła KUL). Kościół w II Rzeczypospolitej, 1980:title page (Stanisława Wilka) page 252 (Wilk, S., ks. [i.e. ksiądz = priest])
found: NUKAT online catalog, viewed April 17, 2018(access point: Wilk, Stanisław, 1944-)
found: Catholic Church. Apostolic Nunciature (Poland). Achilles Ratti (1918-1921). Tomus 1, 1995:title page (edidit Stanislaus Wilk SDB) series title page (Acta nuntiaturae Polonae ; tomus LVII)
found: German Wikipedia, viewed June 6, 2022(Stanisław Wilk SDB [i.e. member of the Salesian order]; born May 18, 1944, in Straszowa Wola, near Opoczno; rector of the Catholic University of Lublin)
found: Katolicki Uniwersytet Lubelski Jana Pawła II website, viewed June 6, 2022(ks. Stanisław Wilk SDB; pro-rector from 1998 to 2004; rector from September 1, 2004, to August 31, 2012; born May 18, 1944, in Straszowa Wola) - https://www.kul.pl/ks-stanislaw-wilk-sdb,art_2058.html
notfound: Informator, 1979;Encykl. powsz., 1976