@article{Graetsch2001,
    author = "Graetsch, H.A.",
    title = "Hexagonal high-temperature form of AlPO4 tridymite, from X-ray powder data",
    journal = "Acta Crystallographica, Section C: Crystal Structure Communications",
    year = "2001",
    volume = "57",
    pages = "665-667",
    ASTM_id = "ACSCEE"
}