%0 Journal Article %A Kenzi Akiyama %A Masayuki Ogawa %A Chihiro Suetake %T On \(\mathrm{STD}_6[18,3]\)'s and \(\mathrm{STD}_7[21,3]\)'s admitting a semiregular automorphism group of order 9 %J The electronic journal of combinatorics %D 2009 %V 16 %N 1 %U http://geodesic.mathdoc.fr/articles/10.37236/237/ %R 10.37236/237 %F 10_37236_237