@article{MZ_1978__162_172710,
     author = {Wilhelm Singhof},
     title = {Generalized {Higher} {Order} {Cohomology} {Operations} {Induced} by the {Diagonal} {Mapping.}},
     journal = {Mathematische Zeitschrift},
     pages = {7--26},
     publisher = {mathdoc},
     volume = {162},
     year = {1978},
     zbl = {0402.55005},
     url = {http://geodesic.mathdoc.fr/item/MZ_1978__162_172710/}
}