@article{CMH_1980__55_139829,
     author = {Beno Eckmann and Guido Mislin},
     title = {On the {Euler} class of representations of finite groups over real fields.},
     journal = {Commentarii mathematici Helvetici},
     pages = {319--329},
     publisher = {mathdoc},
     volume = {55},
     year = {1980},
     zbl = {0447.20005},
     url = {http://geodesic.mathdoc.fr/item/CMH_1980__55_139829/}
}