@article{MZ_1987__196_173882,
     author = {Marco Rigoli and Isabel M.C. Salavessa},
     title = {Conformal and {Isometric} {Immersions} of {Riemannian} {Manifolds.}},
     journal = {Mathematische Zeitschrift},
     pages = {293--300},
     publisher = {mathdoc},
     volume = {196},
     year = {1987},
     zbl = {0628.53024},
     url = {http://geodesic.mathdoc.fr/item/MZ_1987__196_173882/}
}