@article{JRAM_1990__408_153243,
     author = {Christian Kassel},
     title = {Homologie cyclique, caract\`ere de {Chern} et lemme de perturbation.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {159--180},
     publisher = {mathdoc},
     volume = {408},
     year = {1990},
     zbl = {0691.18002},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1990__408_153243/}
}