@article{CMH_1992__67_3_140275,
     author = {Robert Sczech},
     title = {Eisenstein cocycles for {GL2Q} and values of {L-function} in real quadratic fields.},
     journal = {Commentarii mathematici Helvetici},
     pages = {363--382},
     publisher = {mathdoc},
     volume = {67},
     number = {3},
     year = {1992},
     zbl = {0776.11021},
     url = {http://geodesic.mathdoc.fr/item/CMH_1992__67_3_140275/}
}