@article{Chikalla1964,
    author = "Chikalla, T.D. and McNeilly, C.E. and Skavdahl, R.E.",
    title = "The plutonium-oxygen system",
    journal = "Journal of Nuclear Materials",
    year = "1964",
    volume = "12",
    pages = "131-141",
    ASTM_id = "JNUMAM"
}

@article{Zachariasen1949,
    author = "Zachariasen, W.H.",
    title = "Crystal chemical studies of the 5f-series of elements XII.New compounds representing known structure types",
    journal = "Acta Crystallographica (1,1948-23,1967)",
    year = "1949",
    volume = "2",
    pages = "388-390",
    ASTM_id = "ACCRA9"
}