The fourth national conference on non-destructive testing: Varna, Bulgaria, 28–30 June 1972

✍ Scribed by Zdzislaw Pawlowski

• Publisher: Elsevier Science
• Year: 1973
• Weight: 216 KB
• Volume: 6
• Category: Article
• ISSN: 0029-1021
• DOI: 10.1016/0029-1021(73)90021-2