@article{CTT100559910,
  author = {Runtao Liu and Akira Harda and Toshikazu Takata},
  title = {Solvent-Free Synthesis of Unmodified Cyclodextrin-Based Pseudopolyrotaxane and Polyrotaxane by Grinding},
  journal = {Polym. J.},
  year = 2007,
}

@article{CTT100559920,
  author = {Toshikazu Takata and Runtao Liu and Takeshi Maeda and Nobuhiro Kihara and Akira Harada},
  title = {Solvent-Free Synthesis of Pseudopolyrotaxane and Polyrotaxane: Efficient Threading Complexation of Cyclodextrin Wheel and Linear Polymer Axle to Yield Pseudopolyrotaxane and Its Fixation to Polyrotaxane by Direct Grinding of A Solid Mixture},
  journal = {J. Polym. Sci., Part A: Polym. Chem},
  year = 2007,
}