1. FOURIER ANALYSIS OF X-RAY PATTERNS OF VITREOUS SiO2AND B2O2
2. 2The statement to be found in many textbooks that the two broadenings are linearly sub tractive is incorrect.
3. 3W. H. Bragg, and W. L. Bragg , The Crystalline State , p.189 . Bell & Sons, London, 1933 .