The ".Cubed sphere": A new method for the solution of partial differential equations in spherical geometry, Ronchi, C., Iacono Roberto, and Paolucci P.S. , Journal of Computational Physics, Volume 124, Number 1, p.93-114, (1996)

Finite difference approximation to the shallow water equations on a quasi-uniform spherical grid, Ronchi, C., Iacono Roberto, and Paolucci P.S. , Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Volume 919, p.741-747, (1995)