@article{MS2_1982__50_166790,
     author = {Andrew Baker and Nigel Ray},
     title = {Some infinte families of {U-hypersurfaces.}},
     journal = {Mathematica Scandinavica},
     pages = {149--166},
     year = {1982},
     volume = {50},
     zbl = {0513.57017},
     url = {http://geodesic.mathdoc.fr/item/MS2_1982__50_166790/}
}