1. Aarts, E.M.: Amperometric determination of fluoride by the formation of an iron-fluoride complex. Pharm. Weekblad. 96, 373—379 (1961)
2. Abramyan, A.A., Sarkisyan, R.S.: New simplified micro- and semimicro-determination of fluoride in organic compounds. Izv. Akad. Nauk Arm. SSR, Khim. Nauki 15, 127—129 (1962)
3. Adams, D.F., Koppe, R.K.: Automatic atmospheric fluoride pollutant analyzer. Anal. Chem. 31,1249—1254 (1959)
4. Adams, D.F., Koppe, R.K.: Effect of pH on high-salt thorium fluoride titration. Anal. Chem. 28, 116—117 (1956)
5. Adams, D.F., Koppe, R.K., Matzek, N. E.: Colorimetric method for continuous recording analysis of atmospheric fluoride. Test chamber and interference studies with the mini-adak analyzer. Anal. Chem. 33, 117—119 (1961)