1. |
A. I. Finkel'shtein, N. V. Spiridonova, “Chemical properties and molecular structure of derivatives of <i>sym</i>-heptazine [1,3,4,6,7,9,9b-heptaazaphenalene, tri-1,3,5-triazine]”, Usp. Khim., 33:7 (1964), 900–911 ; Russian Chem. Reviews, 33:7 (1964), 400–405 |
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