@article{GDZPPN002237059, title = {Chern Classes and Extraspecial Groups.}, journal = {Manuscripta mathematica}, volume = {86}, year = {1995}, pages = {73-84}, zbl = {0862.20039}, url = {http://dml.mathdoc.fr/item/GDZPPN002237059} }
Green, David J.; Leary, Ian J. Chern Classes and Extraspecial Groups.. Manuscripta mathematica, Tome 86 (1995) pp. 73-84. http://gdmltest.u-ga.fr/item/GDZPPN002237059/