P. Aigrain and D. Beauquier, Polyomino tilings, cellular automata and codicity, Theoretical Computer Science, vol.147, issue.1-2, pp.165-180, 1995.
DOI : 10.1016/0304-3975(94)00201-S

URL : http://doi.org/10.1016/0304-3975(94)00201-s

D. Beauquier and M. Nivat, A codicity undecidable problem in the plane, Theoretical Computer Science, vol.303, issue.2-3, pp.417-430, 2003.
DOI : 10.1016/S0304-3975(03)00029-X

J. Berstel and D. Perrin, Theory of Codes, 1985.
URL : https://hal.archives-ouvertes.fr/hal-00619780

G. Costagliola, V. Deufemia, F. Ferrucci, and C. Gravino, On regular drawn symbolic picture languages, Information and Computation, vol.187, issue.2, pp.209-245, 2003.
DOI : 10.1016/S0890-5401(03)00136-6

G. Costagliola, F. Ferrucci, and C. Gravino, Adding symbolic information to picture models: definitions and properties, Theoretical Computer Science, vol.337, issue.1-3, pp.51-104, 2005.
DOI : 10.1016/j.tcs.2005.03.028

URL : http://doi.org/10.1016/j.tcs.2005.03.028

W. Fory´sfory´s, Asymptotic behaviour of bi-infinite words, RAIRO - Theoretical Informatics and Applications, vol.38, issue.1, pp.27-48, 2004.
DOI : 10.1051/ita:2004002

T. Harju and J. Karhumäki, Many aspects of defect theorems, Theoretical Computer Science, vol.324, issue.1, pp.35-54, 2004.
DOI : 10.1016/j.tcs.2004.03.051

J. Karhumäki and S. Mantaci, DEFECT THEOREMS FOR TREES, Developments In Language Theory, pp.119-133, 1999.
DOI : 10.1142/9789812792464_0014

S. Mantaci and A. Restivo, Codes and equations on trees, Theoretical Computer Science, vol.255, issue.1-2, pp.483-509, 2001.
DOI : 10.1016/S0304-3975(99)00317-5

M. Moczurad and W. Moczurad, Asymptotic density of brick and word codes, Ars Combinatoria, vol.83, pp.169-177, 2007.

W. Moczurad, Brick codes: families, properties, relations, International Journal of Computer Mathematics, vol.12, issue.2, pp.133-150, 2000.
DOI : 10.1016/0022-0000(91)90026-2

W. Moczurad, Defect theorem in the plane, RAIRO - Theoretical Informatics and Applications, vol.41, issue.4, pp.403-409, 2007.
DOI : 10.1051/ita:2007018