Resolved Toroidal Orbifolds and their Orientifolds
  We discuss the resolution of toroidal orbifolds. For the resulting smooth Calabi-Yau manifolds, we calculate the intersection ring and determine the divisor topologies. In a next step, the orientifold quotients are constructed. 
D. Lust, S. Reffert, E. Scheidegger, S. Stieberger