7WARYCH J, SZYMANOWSKI M. Optimum Values of Process Parameters of the Wet Limestone Flue Gas Desulphuri- zation System [J]. Chemical Engineering & Technology, 2002, 25(4): 427-432.
8PISHVAIE M R, SHAHROKHI M. pH Control Using the Nonlinear Multiple Models, Switching, and Tuning Approach [J]. Industrial &Engineering Chemistry Research, 2000, 39 (5): 1311-1319.
9WARYCH J, SZYMANOWSKI M. Model of the Wet Limes- tone Flue Gas Desulphurization Process for Cost Optimi-zation [J]. Industrial & Engineering Chemistry Research, 2001, 40 (12) : 2597-2605.