@article {layton2003semi,
	title = {A semi-Lagrangian collocation method for the shallow water equations on the sphere},
	journal = {SIAM Journal on Scientific Computing},
	volume = {24},
	number = {4},
	year = {2003},
	pages = {1433{\textendash}1449},
	publisher = {SIAM},
	author = {Layton, Anita T}
}