@article{10_5427_jsing_2012_5i,
     author = {A. Libgober},
     title = {Factors of {Jacobians} and isotrivial elliptic surfaces},
     journal = {Journal of Singularities},
     pages = {115--123},
     publisher = {mathdoc},
     volume = {5},
     year = {2012},
     doi = {10.5427/jsing.2012.5i},
     url = {http://geodesic.mathdoc.fr/articles/10.5427/jsing.2012.5i/}
}