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- [41] COLLABORATIVE STUDY OF AN AUTOMATED METHOD FOR DETERMINATION OF TOTAL AND DIRECT AVAILABLE P2O5 IN FERTILIZERS JOURNAL OF THE ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS, 1973, 56 (05): : 1084 - 1086
- [46] Effect of P2O5, B2O3 and PbO on the sinterability of β.quartz solid solution and gahnite glass-ceramics Journal of Materials Science, 2001, 36 : 477 - 483