Yggdrasil katalogsystem. Sluttrapport Håvard Hegna Hans-Fredrik Berg Gunn Skogseth Vigdis Houmb Publication details Publisher: Norsk Regnesentral Series: NR-notat (DTEK/14/89) Year: 1989 Issue: DTEK/14/89 You are here: Home Publications Report Yggdrasil katalogsystem. Sluttrapport