1. Vinogradov AP (1962) Geochimija 7:555–571
2. Xiue Guang (1990) Analytical chemistry of gold. Space Navigation Publishing House, Beijing
3. Petrovič N, Budelan D, Cokič S, Nešič B (2001) J Serb Chem Soc 66:45–52
4. Tewari RK, Gupta JR (1993) At Spectrosc 14:152–155
5. McHugh JB (1983) At Spectrosc 4:66–68