@article{Lundstroem1968,
    author = "Lundstroem, T.",
    title = "The crystal structure of Hf3 P2",
    journal = "Acta Chemica Scandinavica (1-27,1973-42,1988)",
    year = "1968",
    volume = "22",
    pages = "2191-2199",
    ASTM_id = "ACSAA4"
}

@article{Kleinke1996,
    author = "Kleinke, H. and Franzen, H.F.",
    title = "The binary hafnium phosphide Hf3 P2",
    journal = "Acta Crystallographica, Section C: Crystal Structure Communications",
    year = "1996",
    volume = "52",
    pages = "2127-2129",
    ASTM_id = "ACSCEE"
}