Dilatometric study on monoclinic crystals of ferroelectric TGS down to cryogenic temperature region Toshihisa Yamaguchi, Noriyuki Nakatani, Toshio Kikuta, Tadashi kurihama, Toshiharu Mitsui, Yoshihiro Seimiya, Shuji Yoshizawa, Fuminao Shimizu, Masaaki Takashige Ferroelectrics, 337, 59-69 (2006). IMF-11, published at 1 August 2006