Wschebor, Mario. "Smoothed analysis of K(A)", Journal of Complexity, Vol. 20, 1, 97-107, (2004).
Abadie, Fernando. "On partial actions and groupoids", Proc. Amer. Math. Soc. 132, 1037-1047, (2004).
Bofill F., Garrido A., Romero N., Rovella A., Vilamajó F. "On the quadratic endomorphisms of the plane" , Advanced Nonlinear Studies 4, 37-55, (2004).
J. Cuesta-Albertos; M. Wschebor. Condition Numbers and Extrema of Random Fields, IV Ascona Seminar on Stochastic Analysis, Random Fields and Applications, Progress in Probability, Birkhaüser, pp 69-82, (2004).
I. Assem, M. Lanzilotta; ``The simple connectedness of a tame weakly shod algebra", Communications in Algebra, 32, (9), 3685-3702, 2004.
