@article{MM2_1990__66_1_155463,
     author = {Antoni Pierzchalski},
     title = {Ricci curvature and qusiconformal deformations of a {Riemannian} manifold.},
     journal = {Manuscripta mathematica},
     pages = {113--128},
     publisher = {mathdoc},
     volume = {66},
     number = {1},
     year = {1990},
     zbl = {0698.53021},
     url = {http://geodesic.mathdoc.fr/item/MM2_1990__66_1_155463/}
}