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Fusco Testa Farmaco, Edizione Scientifica, 1957 , vol. 12, p. 823,834 Full Text Show Details Aspelund Stolt Acta Academiae Aboensis, Series B: Mathematica et Physica, 1955 , vol. 20, # 4 p. 1,14 Chem.Abstr., 1956 , # 11352
參考文獻:
Bayer and Co. Patent: DE249722 Full Text Show Details Bayer and Co. Patent: DE247952 Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 11, p. 926,928