@article{SMZ_2007__48_5_55708,
     author = {Bazajkin, Ya.V. and Matvienko, I.V.},
     title = {On the four-dimensional -manifolds of positive {Ricci} curvature.},
     journal = {Sibirskij Matematicheskij Zhurnal},
     pages = {973},
     publisher = {mathdoc},
     volume = {48},
     number = {5},
     year = {2007},
     zbl = {1164.53349},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/SMZ_2007__48_5_55708/}
}