\item
P.M.B. Vit\'anyi, On a problem in the collective behavior
of automata,
\it
Discrete Mathematics
{\bf 14}
\rm
(1976), 99 - 101.
Abstract: Varshavsky defines the function L(n) as the
maximum finite length of a configuration which can be grown
from one activated automaton in a linear space of
identical finite=state automata having n internal states. It is shown
that L increases faster than any computable function, even if the flow
of information in the linear cell space is restricted to one
direction.