@article{AFM_1995_20_2_a4,
     author = {Michael Wolf},
     title = {On the existence of {Jenkins-Strebel} differentials using harmonic maps from surfaces to graphs},
     journal = {Annales Fennici Mathematici},
     pages = {269--278},
     year = {1995},
     volume = {20},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AFM_1995_20_2_a4/}
}