(1)
Sotomayor, M. D. P. T.; Raimundo JĂșnior, I. M.; Rohwedder, J. J. R.; Oliveira Neto, G. A PH Optode Based on Thymol Blue: Application to Determination of CO2 Using Flow Injection Analysis System. Eclet. Quim. 2010, 35, 33-43.