@article {,
	title = {{The Interaction of Two Coronal Mass Ejections: Influence of Relative Orientation}},
	journal = {\apj},
	volume = {778},
	year = {2013},
	pages = {20},
	keywords = {magnetohydrodynamics: MHD, methods: numerical, shock waves, Sun: corona, Sun: coronal mass ejections: CMEs, Sun: heliosphere},
	doi = {10.1088/0004-637X/778/1/20},
	author = {Lugaz, N. and Farrugia, C.~J. and Manchester, W.~B. and Schwadron, N.}
}
