@article{SIGMA_2016_12_a39,
     author = {I. P. Goulden and Mathieu Guay-Paquet and Jonathan Novak},
     title = {Toda {Equations} and {Piecewise} {Polynomiality} for {Mixed} {Double} {Hurwitz} {Numbers}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2016},
     volume = {12},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2016_12_a39/}
}