@article{10_4064_cm_24_2_205_211,
     author = {Jerry F. Williams},
     title = {On 2-ramification points of a dendroid},
     journal = {Colloquium Mathematicum},
     pages = {205--211},
     publisher = {mathdoc},
     volume = {24},
     number = {2},
     year = {1971},
     doi = {10.4064/cm-24-2-205-211},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-24-2-205-211/}
}