Помогите, пожалуйста, скачать 2 статьи:
1.Synthetic Communications, Volume 39, Issue 9 January 2009 , pages 1640 - 1654
Highly Efficient System for Reduction of Carboxylic Acids and Their Derivatives to Alcohols by HfCl4/KBH4
Jianghua Zhang; Xinqin Gao; Chengyi Zhang; Jianfei Maa; Defeng Zhao
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http://dx.doi.org/10.1080/00397910802573130
Synthesis of Novel 1,4-Benzoxazine-2,3-Dicarboximides from Maleic Anhydride and Substituted Aromatic Amines
Peng Wu; Yongzhou Hu
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http://dx.doi.org/10.1080/00397910802369638