@article{RM_2002_57_5_a4,
     author = {N. Ya. Amburg},
     title = {An example of a~regular {Strebel} differential},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {987--988},
     year = {2002},
     volume = {57},
     number = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2002_57_5_a4/}
}