@article {501,
	title = {Tokamak magnetic field lines described by simple maps},
	journal = {The European Physical Journal Special Topics},
	volume = {165},
	year = {2008},
	month = {Jan-12-2008},
	pages = {195 - 210},
	issn = {1951-6355},
	doi = {10.1140/epjst/e2008-00863-y},
	url = {http://www.springerlink.com/index/10.1140/epjst/e2008-00863-yhttp://www.springerlink.com/index/pdf/10.1140/epjst/e2008-00863-y},
	author = {J. S. E. PORTELA and I. L. Caldas and R L Viana}
}
