@article{DOCMA_2015__20__a15,
     author = {Castryck, Wouter and Cools, Filip},
     title = {A combinatorial interpretation for {Schreyer's} tetragonal invariants},
     journal = {Documenta mathematica},
     pages = {927--942},
     publisher = {mathdoc},
     volume = {20},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2015__20__a15/}
}