@article{CMH_1980__55_139823,
     author = {CH. Kratzer},
     title = {...-Structure en {K-th\'eorie} alg\'ebrique.},
     journal = {Commentarii mathematici Helvetici},
     pages = {233--254},
     publisher = {mathdoc},
     volume = {55},
     year = {1980},
     zbl = {0444.18008},
     url = {http://geodesic.mathdoc.fr/item/CMH_1980__55_139823/}
}