@article{JEMS_2009_11_3_a6,
     author = {Daniel Hern\'andez Ruip\'erez and Ana Cristina L\'opez Mart{\'\i}n and Fernando Sancho de Salas},
     title = {Relative integral functors for singular fibrations and singular partners},
     journal = {Journal of the European Mathematical Society},
     pages = {597--625},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {2009},
     doi = {10.4171/jems/162},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/162/}
}