@article{DOCMA_2011__16__a26,
     author = {Pink, Richard and Wedhorn, Torsten and Ziegler, Paul},
     title = {Algebraic zip data},
     journal = {Documenta mathematica},
     pages = {253--300},
     publisher = {mathdoc},
     volume = {16},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2011__16__a26/}
}