@techreport{weko_112401_1,
   author	 = "Yasuaki,Kobayashi and Hisao,Tamaki",
   title	 = "Improved fixed parameter algorithm for two-layer crossing minimization",
   year 	 = "2015",
   institution	 = "Gakushuin University, Meiji University",
   number	 = "9",
   month	 = "jan"
}