TY  - BOOK
AU  - Deutsches Institut fur Normung
TI  - DIN-51225 (part 1) - 1976; Material testing machines, Hardness testing machines with optical indentation measuring device - test load range 49.03 to 29420N (5 to 3000kp)
PY  - 1976///
CY  - Berlin
PB  - DIN
ER  -