1. (a) J. Thomas, Ger Offen, 2, 403, 357 (1974).
2. (b) J. Thomas, Chem. Abstr. 81 (1974) 146153g.
3. Medicinal Chemistry Part I;Montgomery,1970
4. (a) K.M. Lokanatha Rai, N. Linganna, Alfred Hassner, C. Anjanamurthy, A simple procedure for the synthesis of aminooxadiazole, J. Sci. Soc. Thailand 2 (1996) 74.