(1988). Who's who in Germany: A - N ; O - Z, Appendix. Sutter.
Lua i Stíl Chicago (17ú heag.)Who's Who in Germany: A - N ; O - Z, Appendix. Essen: Sutter, 1988.
Lua MLA (8ú heag.)Who's Who in Germany: A - N ; O - Z, Appendix. Sutter, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.