@article{10_1017_S0017089599970271,
     author = {CHEN, BANG-YEN},
     title = {Relations between {Ricci} curvature and shape operator for submanifolds with arbitrary codimensions},
     journal = {Glasgow mathematical journal},
     pages = {33--41},
     year = {1999},
     volume = {41},
     number = {1},
     doi = {10.1017/S0017089599970271},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089599970271/}
}