Geodesic
On the lengthening of chemical bonds during glass formation
Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 1 (1988), pp. 66-69 
S. A. Akopyan; A. A. Vardanian; G. Ch. Grigorian; A. E. Rustamian; Yu. S. Chilingaryan. On the lengthening of chemical bonds during glass formation. Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 1 (1988), pp. 66-69. http://geodesic.mathdoc.fr/item/UZERU_1988_1_a10/
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Voir la notice de l'article provenant de la source Math-Net.Ru

The variation of chemical bonds lengths in structural units during glass formation is corroborated by measuring of softening enthalpy and thermal expansion coefficient in glasses synthesized in different conditions but of identical composition.

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