References for this solution are:

1. J.A. Benek, P.G. Buning, and J.L. Steger, "A 3-D Chimera Grid Embedding
   Technique," AIAA-85-1523-CP, AIAA 7th Computational Fluid Dynamics
   Conference, Cincinnati, OH, July 15-17, 1985.

2. J.A. Benek, J.L. Steger, F.C. Dougherty, and P.G. Buning, "Chimera: A
   Grid-Embedding Technique," AEDC-TR-85-64, Arnold Engineering Development
   Center, Arnold AFS, TN, April 1986.
