@article{10_1017_S0017089500009691,
     author = {Kashani, S. M. B.},
     title = {Isoparametric functions and submanifolds},
     journal = {Glasgow mathematical journal},
     pages = {145--152},
     year = {1993},
     volume = {35},
     number = {2},
     doi = {10.1017/S0017089500009691},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500009691/}
}