Algebraic Methods for Studying Interactions Between Epidemiological VariablesF. Ricceri, C. Fassino, G. Matullo, M. Roggero, M.-L. Torrente, P. Vineis and L. TerraciniMath. Model. Nat. Phenom., 7 3 (2012) 227-252DOI: https://doi.org/10.1051/mmnp/20127314