Clawpack: Building an open source ecosystem for solving hyperbolic PDEs - Mandli, Kyle; Ahmadia, Aron; Berger, Marsha; Calhoun, Donna; George, David; Hadjimichael, Yiannis; Ketcheson, David; Lemoine, Grady I.; LeVeque, Randall (PeerJ Computer Science, 2020)