@article{10_2140_agt_2004_4_49,
     author = {Brown, Robert F and Kelly, Michael R},
     title = {The {boundary-Wecken} classification of surfaces},
     journal = {Algebraic and Geometric Topology},
     pages = {49--71},
     year = {2004},
     volume = {4},
     number = {1},
     doi = {10.2140/agt.2004.4.49},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2004.4.49/}
}