Schutt-Kehm, E. Exlibris-Katalog des Gutenberg-Museums Vol. 1 and 2.

Wiesbaden, Claus Wittal, 1985-1998, 2 vols., 464; 718,(2)p., num. ills., orig. unif. cl., large 8vo.

Wittal, C. Eignerverzeichnis zum Exlibris-Katalog des Gutenberg-Museums (...). Ibid., idem, 2003, 335p., ills., orig. cl. unif. w the above. - AND 5 others: DEG JAHRBUCH 2010-2012 (Frankf. a.M., 2010-2012, tipped-in orig. exlibris, ills., printed in 400/ 425 numb. copies, orig. unif. boards, 4to) and vol. 13 and 14 of the series CONTEMPORARY INTERNATIONAL EX-LIBRIS ARTISTS (n.pl., 2010/ 2011, ills., each printed in 200 numb. copies, orig. unif. boards, 4to).