%0 Journal Article %A Darlayne Addabbo %A Maarten Bergvelt %T $\tau$-Functions, Birkhoff Factorizations and Difference Equations %J Symmetry, integrability and geometry: methods and applications %D 2019 %V 15 %U http://geodesic.mathdoc.fr/item/SIGMA_2019_15_a22/ %G en %F SIGMA_2019_15_a22