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Budapest, 1963
[7]
Tamás Ferenc (szerk.):
Proceedings of the Seventh Conference on the Silicate Industry. Siliconf, 1963
Budapest, 1965
[8]
Tamás Ferenc (szerk.):
Proceedings of the eighth conference on the silicate industry. Siliconf, 1965
Budapest, 1966
[9]
Tamás Ferenc (szerk.):
Proceedings of the ninth conference on the silicate industry. Siliconf, 1967
Budapest, 1968