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Note to the paper "A model of competition" (Appl. Math. (Warsaw) 39 (2012), 293-303) Peter Kahlig (2013) Applicationes Mathematicae
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Nowhere differentiable solutions of a system of functional equations. Roland Girgensohn (1994) Aequationes mathematicae
Numerical experiments in Fourier asymptotics of Cantor measures and wavelets. Janardhan, Prem, Rosenblum, David, Strichartz, Robert S. (1992) Experimental Mathematics
Numerical range and related nonlinear functional equations Ram U. Verma (1992) Czechoslovak Mathematical Journal