The FitzHugh-Nagumo model : bifurcation and dynamics / by C. Rocşoreanu, A. Georgescu and N. GiurgiţeanuApplied hydraulic transients for hydropower plants and pumping stations / Mihail Popescu, Dumitru Arsenie, Paul Vlase ; [transl. from the Romanian Adelina Georgescu ; transl. ed. by Hubert Turner]