@techreport{weko_70271_1,
   author	 = "Masanobu,Ishikawa and Katsuhisa,Yamanaka and Yota,Otachi and Shin-ichiNakano",
   title	 = "Enumerating All Rooted Trees Including <i>k</i> Leaves",
   year 	 = "2010",
   institution	 = "Department of Computer Science, Gunma University., Graduate School of Information Systems, University of Electro-communications., Graduate School of Information Sciences, Tohoku University., Department of Computer Science, Gunma University.",
   number	 = "6",
   month	 = "sep"
}