TY - JOUR AU - Philippe Di Francesco AU - Rinat Kedem TI - $Q$-system Cluster Algebras, Paths and Total Positivity JO - Symmetry, integrability and geometry: methods and applications PY - 2010 VL - 6 UR - http://geodesic.mathdoc.fr/item/SIGMA_2010_6_a13/ LA - en ID - SIGMA_2010_6_a13 ER -