1097-1103 Alexeev, V.M., Jacobson, M.V. (1981) Symbolic dynamics and hyperbolic dynamical systems. Phys. Rep. 75:287-325. Alonso, A., Faure, M.-P., Beaudet, A. (1994): Neurotensin promotes oscillatory bursting behavior and is internalized in basal forebrain cholinergic neurons. J. Neurosci. 14:5778-5792.