A. Stancu, G. Pușcașu, and B. Codreș, “Aspects regarding the neuro-adaptive control structure properties. Application to the nonlinear pneumatic servo system benchmark”, The Annals of “Dunarea de Jos“ University of Galati. Fascicle III, Electrotechnics, Electronics, Automatic Control, Informatics, vol. 29, pp. 82-86, Dec. 2006.