Научная литератураThe Chemistry of Heterocyclic Compounds, Chemistry of 1 2 3-Triazines and 1 2 4-Triazines, Tetrazines, and PentazinHans Neunhoeffer, Paul F. Wiley
Научная литератураThe Chemistry of Heterocyclic Compounds, Pyrazolones, Pyrazolidones, and DerivativesPaul F. Wiley, Richard H. Wiley