@article{JEMS_2017_19_3_a1,
     author = {Sebastian Casalaina-Martin and Samuel Grushevsky and Klaus Hulek and Radu Laza},
     title = {Extending the {Prym} map to toroidal compactifications of the moduli space of abelian varieties (with an appendix by {Mathieu} {Dutour} {Sikiri\'c)}},
     journal = {Journal of the European Mathematical Society},
     pages = {659--723},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {2017},
     doi = {10.4171/jems/678},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/678/}
}