@article {2002,
	title = {An optimal fast-diffusion variational method for non isochronous system},
	number = {SISSA;8/2002/M},
	year = {2002},
	publisher = {SISSA Library},
	url = {http://hdl.handle.net/1963/1579},
	author = {Luca Biasco and Massimiliano Berti and Philippe Bolle}
}
