@article{MM2_1974__14_154281,
     author = {Urs W\"urgler},
     title = {Realisierung formaler {Gruppen} durch {Kohomologiefunktoren.}},
     journal = {Manuscripta mathematica},
     pages = {65--88},
     publisher = {mathdoc},
     volume = {14},
     year = {1974},
     zbl = {0342.55003},
     url = {http://geodesic.mathdoc.fr/item/MM2_1974__14_154281/}
}