C 124.0BO(Karton) 

R 0 I I i n g, L.: The Role of graphie display 
of eoneept relationships in indexing and 
retrieval voeabularies ineluding a Thesaurus 

of doeumentation terms. Direetorate "Dissemination 
of Information" Center for Information 
and Doeumentation -CID.-Elsinore: 
European Atombe Energy Community -EURATOM 
1965. 29 S. 4 /Umsehlagt./ 

/Text Masehinensehr.vervielf./