@article{SM_2011_202_7_a5,
     author = {S. E. Stepanov},
     title = {Curvature and {Tachibana} numbers},
     journal = {Sbornik. Mathematics},
     pages = {1059--1069},
     publisher = {mathdoc},
     volume = {202},
     number = {7},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2011_202_7_a5/}
}