@article{DOCMA_2017__22__a43,
     author = {Crew, Richard},
     title = {Rigidity and {Frobenius} {Structure}},
     journal = {Documenta mathematica},
     pages = {287--296},
     publisher = {mathdoc},
     volume = {22},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2017__22__a43/}
}