Linear Approximations of Addition Modulo 2n. - Johan Wallén (FSE, 2003)

On the Additive Differential Probability of Exclusive-Or. - Helger Lipmaa; Johan Wallén; Philippe Dumas 001 (FSE, 2004)

Improved Linear Distinguishers for SNOW 2.0. - Kaisa Nyberg; Johan Wallén (FSE, 2006)

Asymptotic Behaviour of a Non-commutative Rational Series with a Nonnegative Linear Representation. - Philippe Dumas 001; Helger Lipmaa; Johan Wallén (Discret. Math. Theor. Comput. Sci., 2007)