Recurrence relations for the number of labeled structures on a finite set. - Christian Blatter; Ernst Specker (Logic and Machines, 1983)

The Chromatic Number of the Sphere: 10769. - Christian Blatter; Josh Greene (Am. Math. Mon., 2001)

Comment formaliser les connaissances tacites d'une organisation ? Le cas de la conduite du changement à la SNCF. - Anne Remillieux; Christian Blatter (EGC, 2006)

Four Shots for a Convex Quadrilateral. - Ed Scheinerman; Christian Blatter (Am. Math. Mon., 2008)

Problem 11455. - Christian Blatter (Am. Math. Mon., 2009)