4-pironă (Romanian Wikipedia)

Analysis of information sources in references of the Wikipedia article "4-pironă" in Romanian language version.

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Van Allan, J. A.; Reynolds, G. A.; Alessi, J. T.; Chie Chang, S.; C. Joines, R. (1971). „Reactions of 4‐pyrones with primary amines. A new class of ionic associates”. Journal of Heterocyclic Chemistry. 8 (6): 919–922. doi:10.1002/jhet.5570080606.
Cook, Denys (1963). „The Preparation, Properties, and Structure of 2,6-bis-(Alkyamino)-2,5-heptadien-4-ones”. Canadian Journal of Chemistry. 41 (6): 1435–1440. doi:10.1139/v63-195 .