@article{Benser2008,
    author = "Benser, E. and Schoeneborn, M. and Glaum, R.",
    title = "Syntheses, crystal structures and structural systematics of quaternary vanadium(IV) oxidephosphides M(II) V2 O2 (P O4)2 (M: Co, Ni, Cu)",
    journal = "Zeitschrift fuer Anorganische und Allgemeine Chemie (1950) (DE)",
    year = "2008",
    volume = "634",
    pages = "1677-1686",
    ASTM_id = "ZAACAB"
}

@article{Kaoua2009,
    author = "Kaoua, S. and Gravereau, P. and Chaminade, J.P. and Pechev, S. and Krimi, S. and El Jazouli, A.",
    title = "Syntheses and crystal structures of new vanadium(IV) oxyphosphates M (V O)2 (P O4)2 with M = Co, Ni",
    journal = "Solid State Sciences",
    year = "2009",
    volume = "11",
    pages = "628-634",
    ASTM_id = "SSSCFJ"
}