World patent information : Kazandjieva, R. and Terziev, N. automation of the technological and information processes in the Bulgarian patent office 15 (4), pp. 220–229

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 112 KB
• Volume: 15
• Category: Article
• ISSN: 0172-2190
• DOI: 10.1016/0172-2190(93)90248-u