@article{10_5427_jsing_2013_7k,
     author = {Helge M{\o}ller Pedersen},
     title = {The universal abelian cover of a graph manifold},
     journal = {Journal of Singularities},
     pages = {205--219},
     publisher = {mathdoc},
     volume = {7},
     year = {2013},
     doi = {10.5427/jsing.2013.7k},
     url = {http://geodesic.mathdoc.fr/articles/10.5427/jsing.2013.7k/}
}