... Neu-mann’s automaton (model).The proof, which must consider von Neumann’s automaton in detail, willbe found in [151, pp 166 - 168 ]. To complete the analogy between self-reproducing automata and ... arose at that time was to determine how simple anautomaton could be still being able to reproduce.Next, many authors, particularly Codd [33] in 1 968 , Herman [89] in 1973,Langton [100] in 1984 and ... cellular automata theory, from work by von Neumann and, lateron, Burks [ 26, 1 56] , quickly went past the mere theoretical fields of bothmathematics and computer science and proved itself to be very...