1. grid. AIAA Paper 92-9L43.!32.
2. [RocSI] P. I, Roe. Approxiriiatc IXicmann solvers, parameter vcctors and t!iffcr[WATKSl] G.Warren, W. K. Aiidprson, d. Thomas, and S. Xrist. Grid convergence for sdap tive methods. In AIAil f0th Compiii. tional Fluid Dyriamics CoriJcrcnce,1901,