[1] V. I. Danilov, A. V. Karzanov and G. A. Koshevoy, Plücker
environments, wiring and tiling diagrams, and weakly separated
set-systems, Adv. Math. 224 (2010), 1-44.
[2] V. I. Danilov, A. V. Karzanov and G. A. Koshevoy, On maximal
weakly separated set-systems, J. of Algebraic Combinatorics 32 (2010),
497-531. (Posted ArXiv:0909.1423[math.CO], 2009.)
[3] B. Leclerc and A. Zelevinsky, Quasicommuting families of quantum
Plücker coordinates, Amer. Math. Soc. Trans., Ser. 2 181 (1998),
85-108.
[4] S. Oh, A. Postnikov and D. E. Speyer, Weak separation and plabic
graphs, ArXiv:1109. 4434 [math.CO], 2011.
[5] A. Postnikov, Total positivity, Grassmannians, and networks,
ArXiv:math.CO/0609764, 2006.
[6] H. Yoo, On the purity of maximal weakly separated set families,
ArXiv:1111.6404[math.CO], 2011.