A. Burstein, On Some Properties of Permutation Tableaux, Annals of Combinatorics, vol.11, issue.3-4, pp.355-368, 2007.
DOI : 10.1007/s00026-007-0323-0

V. Jelínek, Pattern-avoiding fillings of rectangular shapes, Formal Power Series and Algebraic Combinatorics Nankai University, fpsac.cn/ PDF-Proceedings/Posters/47.pdf, 2007.

M. Josuat-vergès, Bijections between pattern-avoiding binary fillings of Young diagrams, 2008.

S. Kitaev, On Multi-avoidance of Right Angled Numbered Polyomino Patterns, INTEGERS: Electronic Journal of Combinatorial Number Theory, vol.4, p.21, 2004.

A. Postnikov, Total positivity, Grassmannians, and networks, arXiv:math/0609764, but we cite the up-to-date version from http://www-math.mit, 2007.

A. Spiridonov, Pattern-Avoidance in Binary Fillings of Grid Shapes, available at http:// www-math.mit.edu/~lesha/papers/pattern-pair-avoidance.pdf (will be updated with new results, 2008.

Z. Stankova, Shape-Wilf-Ordering on Permutations of Length 3, Electronic J. Combin, vol.14, issue.1, p.56, 2007.

E. Steingrímsson and L. Williams, Permutation tableaux and permutation patterns, Journal of Combinatorial Theory, Series A, vol.114, issue.2, pp.211-234, 2007.
DOI : 10.1016/j.jcta.2006.04.001

L. Williams, Enumeration of totally positive Grassmann cells, Advances in Mathematics, vol.190, issue.2, pp.319-3420307271, 2005.
DOI : 10.1016/j.aim.2004.01.003