Ong, A. P., & Panagsagan, S. S. (1997). Feasible permutations of Kepler's spheres. Animo Repository.
Chicago Style CitationOng, Artemis P., and Sandra S. Panagsagan. Feasible Permutations of Kepler's Spheres. Animo Repository, 1997.
MLA CitationOng, Artemis P., and Sandra S. Panagsagan. Feasible Permutations of Kepler's Spheres. Animo Repository, 1997.
Warning: These citations may not always be 100% accurate.