found: On-line library and network systems, 1977 (a.e.) t.p. (K.-D. Lehmann) p. 8 (Klaus-Dieter Lehmann)
found: GFR 77-A
found: Int. Conf. on the Application of Micro-Computers in Information, Documentation, and Libraries (2nd: 1986 : Baden-Baden, Germany). The application of microcomputers ... 1987: CIP t.p. (Klaus-Dieter Lehmann) data sheet (b. 2/29/40)
found: Wikipedia, German, via WWW, Jan. 23, 2012 (Klaus-Dieter Lehmann; librarian, since Apr. 2008 president of the German Goethe-Institute, studied Mathematics and Physics; born Feb. 29, 1940 in Breslau)