Nobutomo Fujiwara Shinji Imahori Tomomi Matsui Ryuhei Miyashiro Constructive Algorithms for the Constant Distance Traveling Tournament Problem. 135-146 2006 conf/patat/2006 PATAT http://dx.doi.org/10.1007/978-3-540-77345-0_9 db/conf/patat/patat2006.html#FujiwaraIMM06