@article{GDZPPN002068893, title = {Exponents for extraordinary homology groups.}, journal = {Commentarii mathematici Helvetici}, volume = {68}, year = {1993}, pages = {653-672}, zbl = {0968.55003}, url = {http://dml.mathdoc.fr/item/GDZPPN002068893} }
Arlettaz, Dominique. Exponents for extraordinary homology groups.. Commentarii mathematici Helvetici, Tome 68 (1993) pp. 653-672. http://gdmltest.u-ga.fr/item/GDZPPN002068893/