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Synthesis of 2-methyl-4-selenoquinazolone, 2-phenylbenzoselenazole, and its derivatives ( ) Author Chen, Yü-Gwan, 1893- Title Synthesis of... (887 × 1.481 (6,02 MB)) - 23:56, 24 dekabr 2020 |
Organic chemistry; or, Chemistry of the carbon compounds ( ) Author Richter, Victor von, 1841-1891 Anschütz, Richard, 1852-1937 Schroeter, Georg, b... (804 × 1.287 (61,59 MB)) - 22:54, 11 noyabr 2020 |
Fayl:Nature (IA nature811909lock).pdf (kateqoriya Scans from the Internet Archive) pages and the left corners are very light because of the wavy pages tried several times taking pictures but the corners remain the same and also the text... (1.004 × 1.512 (55,69 MB)) - 08:14, 28 fevral 2021 |
Fayl:Nature (IA nature1101922lock).pdf (kateqoriya Scans from the Internet Archive) be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work... (825 × 1.172 (94,14 MB)) - 04:16, 1 aprel 2022 |