
246
 Bibliography
J.
 Hartmanis
 [1966],
 Loop-free structure
 of
 sequential machines.
 Inform,
 and
 Control,
 5
(1962), 25-43.
K.
 Henckell,
 S.
 Lazurus,
 and J. L.
 Rhodes [1988], Prime decomposition theorem
 for
 arbi-
trary
 semigroups: General holonomy
 and
 synthesis theorem.
 J.
 Pure Appl. Algebra,
55
 (1988),
 127-172.
T.
 Hikita
 and I. G.
 Rosenberg [1994], Completeness
 for
 uniformly delayed circuits. Acta
Appl Math.,
 52
 (1998),
 49-61.
W.
 M. L.
 Holcombe [1982], Algebraic Automata
 Theory.
 Cambridge University Press,
Cambridge,
 U.K., 1982.
O.
 Holder [1889], Reduction
 of an
 arbitrary algebraic integer
 from
 a
 chain
 of
 integers
 (in
German). Math.
 Ann.,
 34
 (1889),
 26-56.
J. E.
 Hopcroft,
 R.
 Motwani,
 and J. D.
 Ullman [2001], Introduction
 to
 Automata
 Theory,
Languages,
 and
 Computation,
 2nd ed.
 Addison-Wesley, Reading, Mass.,
 2001.
J. E.
 Hopcroft
 and J. D.
 Ullman [1969],
 Formal
 Languages
 and
 Their
 Relation
 to
 Automata.
Addison-Wesley, Reading, Mass.,
 1969.
J. E.
 Hopcroft
 and J. D.
 Ullman [1979], Introduction
 to
 Automata
 Theory,
 Languages,
 and
Computation.
 Addison-Wesley, Reading, Mass.,
 1979.
J. M.
 Howie [1991], Automata
 and
 Languages. Oxford University Press, Oxford,
 U.K.,
1991.
J.
 Horejs [1978], Mappings defined
 by finite
 automata
 (in
 Russian). Problem. Kibernet.,
 9
(1963),
 23-26.
B.
 Imreh [1977],
 On
 -products
 of
 automata. Acta
 Cybernet.,
 3
 (1977),
 301-307.
B.
 Imreh [1980a],
 On
 isomorphic representations
 of
 commutative automata with
respect
 to
 -products. Acta
 Cybernet.,
 5
 (1980/81),
 21-32.
B.
 Imreh
 [1980b],
 On finite
 nilpotent automata. Acta Cybernet.,
 5
 (1980/81),
 281-293.
B.
 Imreh
 [1985],
 On finite
 definite automata. Acta Cybernet,
 7
 (1985),
 61-65.
B.
 Imreh
 [1988],
 A
 note
 on
 generalized v
1
-product. Acta Cybernet,
 8
 (1988),
 247-252.
B.
 Imreh
 [1994],
 On
 complete systems
 of
 automata.
 In
 Words,
 Languages
 and
 Combina-
torics
 II,
 World Scientific, River Edge, N.J.,
 1994, 207-215.
B.
 Imreh
 [1996],
 Compositions
 of
 nondeterministic automata.
 In
 Semigroups,
 Formal
 Lan-
guages
 and
 Computer
 Systems.
 RIMS
 Surikaisenkikenkyusho
 Kokyuroku,
 960
 (1996),
44-53.
B.
 Imreh [2002],
 On the
 equivalence
 of the
 cube-product
 and the
 general product
 of
automata.
 Theoret Comput
 Sci.,
 245
 (2000),
 103-113.
B.
 Imreh
 and M. Ito
 [1997],
 On
 -product
 of
 nondeterministic automata. Algebra Colloq.,
4
 (1997),
 195-202.