нужны статьи
1. Syntheses and Structure Elucidation of Dimethylaminovinyl Substituted 1,3-Oxazines and Pyrazolo[3,4-d][3,1]oxazine Derivatives
Zhijun Wang, Walter Kramer, and Richard Neidlein*
Vol 51, Issue 12, 1999, pp.2893-2905
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Richard Neidlein* and Zhijun Wang
Vol 45, Issue 8, 1997, pp.1509-1518
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