@article{10_2140_agt_2020_20_2451,
     author = {Goujard, Elise and M\"oller, Martin},
     title = {Pillowcase covers: counting {Feynman-like} graphs associated with quadratic differentials},
     journal = {Algebraic and Geometric Topology},
     pages = {2451--2510},
     year = {2020},
     volume = {20},
     number = {5},
     doi = {10.2140/agt.2020.20.2451},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2020.20.2451/}
}