@article{1256053959, author = {Craggs, Robert}, title = {Improving the intersection of polyhedra in $3$-manifolds}, journal = {Illinois J. Math.}, volume = {12}, number = {4}, year = {1968}, pages = { 567-586}, language = {en}, url = {http://dml.mathdoc.fr/item/1256053959} }
Craggs, Robert. Improving the intersection of polyhedra in $3$-manifolds. Illinois J. Math., Tome 12 (1968) no. 4, pp. 567-586. http://gdmltest.u-ga.fr/item/1256053959/