could someone please send me these 3 articles from Waste Management? https://www.sciencedirect.com/science/article/pii/S0956053X07004126 https://www.sciencedirect.com/science/article/pii/S0956053X09002074 https://www.sciencedirect.com/science/article/pii/S0956053X07002255 thanks in advance....