Yukio Ohsawa Naohiro Matsumura Koichi Takahashi Resonance without Response: The Way of Topic Growth in Communications. 155-165 2006 Chance Discoveries in Real World Decision Making http://dx.doi.org/10.1007/978-3-540-34353-0_10 series/sci/2006-30 db/series/sci/sci30.html#OhsawaMT06