1. CJM 2008 (vol 60 pp. 348)
 Santos, F. GuillĂ©n; Navarro, V.; Pascual, P.; Roig, Agust{\'\i}

Monoidal Functors, Acyclic Models and Chain Operads
We prove that for a topological operad $P$ the operad of oriented
cubical singular chains, $C^{\ord}_\ast(P)$, and the operad of
simplicial singular chains, $S_\ast(P)$, are weakly equivalent. As
a consequence, $C^{\ord}_\ast(P\nsemi\mathbb{Q})$ is formal if and only
if $S_\ast(P\nsemi\mathbb{Q})$ is formal, thus linking together some
formality results which are spread out in the literature. The proof
is based on an acyclic models theorem for monoidal functors. We
give different variants of the acyclic models theorem and apply
the contravariant case to study the cohomology theories for
simplicial sets defined by $R$simplicial differential graded
algebras.
Categories:18G80, 55N10, 18D50 

2. CJM 1999 (vol 51 pp. 897)
 Astey, L.; Gitler, S.; Micha, E.; Pastor, G.

Cohomology of Complex Projective Stiefel Manifolds
The cohomology algebra mod $p$ of the complex projective Stiefel
manifolds is determined for all primes $p$. When $p=2$ we also
determine the action of the Steenrod algebra and apply this to the
problem of existence of trivial subbundles of multiples of the
canonical line bundle over a lens space with $2$torsion, obtaining
optimal results in many cases.
Categories:55N10, 55S10 
