@article{CM_1969__21_2_167_0,
     author = {Earle, Clifford J.},
     title = {Some remarks on {Poincar\'e} series},
     journal = {Compositio Mathematica},
     pages = {167--176},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {21},
     number = {2},
     year = {1969},
     mrnumber = {249664},
     zbl = {0194.39202},
     language = {en},
     url = {http://www.numdam.org/item/CM_1969__21_2_167_0/}
}