@article{Denes1980, author = "Denes, G. and Pannetier, J. and Lucas, J.", title = "About Sn F2 stannous fluoride. II. Crystal structure of beta- and gamma- Sn F2", journal = "Journal of Solid State Chemistry", year = "1980", volume = "33", pages = "1-11", ASTM_id = "JSSCBI" }