@article{JEMS_2012_14_2_a7,
     author = {Michael Gekhtman and Michael Shapiro and Alek Vainshtein},
     title = {Poisson geometry of directed networks in an annulus},
     journal = {Journal of the European Mathematical Society},
     pages = {541--570},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {2012},
     doi = {10.4171/jems/311},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/311/}
}