1. Remark at the Twenty Fourth International Symposium on Functional Equations, August 12–August 20, 1986, South Hadley, MA, report of meeting;Alsina;Aequationes Math.,1987
2. Über die Funktionalgleichung f(1+x)+f(1+f(x))=1;Benz;Aequationes Math.,1968
3. Cauchy functional equation on a restricted domain and commuting functions;Matkowski,1985
4. Iteration groups with convex and concave elements;Matkowski;Grazer Math. Ber.,1997
5. Some remarks on a problem of C. Alsina;Matkowski;Stochastica,1986