found: Dürr, A. Im Mittelpunkt Bach, c1988:t.p. verso (Kirsten Beisswenger)
found: Bach-Werke-Verzeichnis, Kleine Ausg., 1998:t.p. (Kirsten Beisswenger) p. 4 of cover (b. 1960; since 1993, instructor at Dokkyo University, Soka, Japan)
found: University of Munich website, viewed March 12, 2013(Visiting scholars. Winter term 2009/10. Prof. Dr. Kirsten Beisswenger, Dokkyo University Saitama/Tokyo [Musicology])
found: Die Musikforschung, 2013:page 320 (Dr. Kirsten Beisswenger; died May 15, 2013, Tokyo)