@book{304981,
	author = {Ellison, Charles Leland},
	title = {Development of Multistep and Degenerate Variational Integrators for Applications in Plasma Physics},
	publisher = {Princeton University},
	year = {2016},
	url = {http://pqdtopen.proquest.com/doc/1779522957.html?FMT=ABS}
}