@article{Michelet1966,
    author = "Michelet, A. and Laruelle, P. and Flahaut, J.",
    title = "Chimie minerale. Sur une nouvelle famille de combinaisons sulfurees des terres rares, de formule generale L4 Ge3 S12, avec L = La a Gd",
    journal = "Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, Serie C, Sciences Chimiques (1966-)",
    year = "1966",
    volume = "262",
    pages = "753-755",
    ASTM_id = "CHDCAQ"
}

@article{Choudhury2008,
    author = "Choudhury, A. and Dorhout, P.K.",
    title = "Synthesis, structure, magnetic and optical properties of ternary thio-germanates: Ln4 (Ge S4)3 (Ln = Ce, Nd)",
    journal = "Zeitschrift fuer Anorganische und Allgemeine Chemie (1950) (DE)",
    year = "2008",
    volume = "634",
    pages = "649-656",
    ASTM_id = "ZAACAB"
}