Dynamical systems characterized by automata. - Alejandro B. Engel (Computing, 1979)

Morphosis of the Julia set of the real parameter family of complex quadratic maps. - Alejandro B. Engel (Comput. Graph., 1993)

Obituary. - Alejandro B. Engel (Fuzzy Sets Syst., 1996)

Modelling the effects of temporary immune protection and vaccination against infectious diseases. - Silvia Martorano Raimundo; Hyun Mo Yang; Alejandro B. Engel (Appl. Math. Comput., 2007)

The cybernetics of inertial propulsion. - Alejandro B. Engel; Paul H. Stiebitz (Kybernetes, 2009)