@article{MM2_1994__84_1_155980,
     author = {Qing-Ming Cheng and Hongcang Yang},
     title = {An estimate of the pinching constant of minimal hypersurfaces with constant scalar curvature in the unit sphere.},
     journal = {Manuscripta mathematica},
     pages = {89--100},
     publisher = {mathdoc},
     volume = {84},
     number = {1},
     year = {1994},
     zbl = {0934.53039},
     url = {http://geodesic.mathdoc.fr/item/MM2_1994__84_1_155980/}
}