Everest, David A.; Terrey, Henry. 467. Germanous oxide and sulphide. Journal of the Chemical Society (Resumed). 1950: 2282. ISSN 0368-1769. doi:10.1039/jr9500002282.
Babich, Olga A.; Ghosh, Manik C.; Gould, Edwin S. Preparation of aqueous solutions of hypovalent germanium; reactions involving germanium-(ii) and -(iii). Chemical Communications. 2000, (11): 907–908. ISSN 1359-7345. doi:10.1039/b000401o.
Yang, Duck J.; Jolly, William L.; O'Keefe, Anthony. Conversion of hydrous germanium(II) oxide to germynyl sesquioxide, (HGe)2O3. Inorganic Chemistry. 1977, 16 (11): 2980–2982. ISSN 0020-1669. doi:10.1021/ic50177a070.
worldcat.org
Everest, David A.; Terrey, Henry. 467. Germanous oxide and sulphide. Journal of the Chemical Society (Resumed). 1950: 2282. ISSN 0368-1769. doi:10.1039/jr9500002282.
Babich, Olga A.; Ghosh, Manik C.; Gould, Edwin S. Preparation of aqueous solutions of hypovalent germanium; reactions involving germanium-(ii) and -(iii). Chemical Communications. 2000, (11): 907–908. ISSN 1359-7345. doi:10.1039/b000401o.
Yang, Duck J.; Jolly, William L.; O'Keefe, Anthony. Conversion of hydrous germanium(II) oxide to germynyl sesquioxide, (HGe)2O3. Inorganic Chemistry. 1977, 16 (11): 2980–2982. ISSN 0020-1669. doi:10.1021/ic50177a070.