The curvature tensor of (\ka,\mu,\nu)-contact metric manifolds
  We study the Riemann curvature tensor of (\kappa,\mu,\nu)-contact metric manifolds, which we prove to be completely determined in dimension 3, and we observe how it is affected by D_a-homothetic deformations. This prompts the definition and study of generalized (\kappa,\mu,\nu)-space forms and of the necessary and sufficient conditions for them to be conformally flat. 
Kadri Arslan, Alfonso Carriazo, Ver\'onica Mart\'in-Molina, Cengizhan   Murathan
math.DG