Alexe, G.Hammer, P. L.Lozin, V.de Werra, D.2006-08-162006-08-162006-08-16200310.1016/S0166-218X(03)00388-3https://infoscience.epfl.ch/handle/20.500.14299/233063WOS:0001864561000044436text::journal::journal article::research article