Gutmann, J.-S., W. Hatzack, I. Herrmann, B. Nebel, F. Rittinger, A. Topor, and T. Weigel. “The CS Freiburg Team: Playing Robotic Soccer Based on an Explicit World Model”. AI Magazine, vol. 21, no. 1, Mar. 2000, p. 37, doi:10.1609/aimag.v21i1.1493.