1. Synthesis, properties, and biological activity of β-aroylpyruvoyl hydrazides oF N-methyl- and N-phenylanthranilic acid
2. Schmidt , P. Eichenberger , K. Rossi , A. Wilhelm, M. US Patent 3,250,764, 1966; Chem Abstr 1963 59 54697
3. Murad , S. Pinnell , S. R. US Patent 5,571,846, 1994; Chem Abstr 1993 118 32944
4. Takasugi , J. J. Neypes , M. V. T. Evans , L. S. Kohls , C. L. Witucki , L. A. US Patent 5,276,038, 1994; Chem Abstr 1995 122 25858