Two Recursive Algorithms for Computing the Weight Distribution of Certain Irreducible Cyclic Codes. - Marko J. Moisio; Keijo O. Väänänen (IEEE Trans. Inf. Theory, 1999)

A Comparision of the Number of Rational Places of Certain Function Fields to the Hasse-Weil Bounds. - Marko J. Moisio; Keijo O. Väänänen (Appl. Algebra Eng. Commun. Comput., 2004)

New irrationality measures for q-logarithms. - Tapani Matala-aho; Keijo O. Väänänen; Wadim Zudilin (Math. Comput., 2006)

Linear Independence of q-Logarithms over the Eisenstein Integers. - Peter Bundschuh; Keijo O. Väänänen (Int. J. Math. Math. Sci., 2010)

On integer values of Kloosterman sums. - Keijo Petteri Kononen; Marko Juhani Rinta-Aho; Keijo O. Väänänen (IEEE Trans. Inf. Theory, 2010)