@article{10_37236_4749,
     author = {Maria Rita Casali and Paola Cristofori},
     title = {Cataloguing {PL} 4-manifolds by gem-complexity},
     journal = {The electronic journal of combinatorics},
     year = {2015},
     volume = {22},
     number = {4},
     doi = {10.37236/4749},
     zbl = {1332.57020},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/4749/}
}