@article{CM_1981__44_1-3_67_0,
     author = {Farkas, Hershel M.},
     title = {Relations between holomorphic quadratic differentials {II}},
     journal = {Compositio Mathematica},
     pages = {67--77},
     publisher = {Sijthoff et Noordhoff International Publishers},
     volume = {44},
     number = {1-3},
     year = {1981},
     mrnumber = {662456},
     zbl = {0488.30033},
     language = {en},
     url = {http://www.numdam.org/item/CM_1981__44_1-3_67_0/}
}