@article{01124656,
title = {Einstein manifolds of positive scalar curvature with arbitrary second Betti number.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {1},
year = {1996},
pages = {1-7},
zbl = {0889.53030},
language = {en},
url = {http://dml.mathdoc.fr/item/01124656}
}
Boyer, Charles P.; Galicki, Krzysztof; Mann, Benjamin M.; Rees, Elmer G. Einstein manifolds of positive scalar curvature with arbitrary second Betti number.. Balkan Journal of Geometry and its Applications (BJGA), Tome 1 (1996) pp. 1-7. http://gdmltest.u-ga.fr/item/01124656/