1.
- Publisher's international ISBN directory 3, Alphabetical section 1992/93 / edit. Walter Ederer. - 19th ed. - München - Berlin - New York : Saur : International ISBN Agency : Bowker, 1992 - s. 3375-5075(Handbook of international documentation and information; vol. 7) ISBN 3-598-21601-7 [1, currently available 1]
- Chapters, articles