@book{522971,
	author = {Petersen, O.H. and et al.},
	title = {Is contracting out still the great panacea? A meta-analysis of international studies on costs and service quality. Paper for the International Conference on Parallel Processing. Milan, 1-4 july 2015},
	url = {http://www.siis.net/documentos/Path/Is_contracting_out_still_the_great_panacea.pdf}
}