@article{10_5427_jsing_2010_2a,
     author = {Enrique Artal Bartolo and Jos\'e Ignacio Cogolludo Agust{\'\i}n},
     title = {On the connection between fundamental groups and pencils with multiple fibers},
     journal = {Journal of Singularities},
     pages = {1--18},
     publisher = {mathdoc},
     volume = {2},
     year = {2010},
     doi = {10.5427/jsing.2010.2a},
     url = {http://geodesic.mathdoc.fr/articles/10.5427/jsing.2010.2a/}
}