@article{GDZPPN002338076, title = {Relative homotopical depth and a conjecture of Deligne.}, journal = {Mathematische Annalen}, volume = {295}, year = {1993}, pages = {87-102}, zbl = {0795.32014}, url = {http://dml.mathdoc.fr/item/GDZPPN002338076} }
Hamm, Helmut A.; Le, Dung Tráng. Relative homotopical depth and a conjecture of Deligne.. Mathematische Annalen, Tome 295 (1993) pp. 87-102. http://gdmltest.u-ga.fr/item/GDZPPN002338076/