TY  - BOOK
TI  - XV (15)th International Congress on Glass, Leningrad, 1989 : : Vol. 3b : Glass technology and application, poster sessions / 
PY  - 1989///
CY  - Leningrad : 
PB  - "Nauka" Leningrad Branch, 
KW  - მინა
KW  - შუშა
ER  -