@article{CTT100575013,
  author = {K. Morita and M. Yano and T. Ono and H. Tanaka and K. Fujii and H. Uekusa and Y. Narumi and K. Kindo},
  title = {Singlet Ground State and Spin Gap in S=1/2 Kagomé Antiferromagnet Rb<sub>2</sub>Cu<sub>3</sub>SnF<sub>12</sub>},
  journal = {J. Phys. Soc. Jpn.},
  year = 2008,
}