%0 Journal Article %A Ishiwata, Tetsuya %T Motion of spiral-shaped polygonal curves by nonlinear crystalline motion with a rotating tip motion %J Mathematica Bohemica %D 2015 %P 111-119 %V 140 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.2015.144318/ %R 10.21136/MB.2015.144318 %G en %F 10_21136_MB_2015_144318