@article{CTT100549579,
  author = {Yosuke Takasu and Kenichi Maki and Kaduki Komori and Tetsushi Takano and Kazuhito Honda and Mitsutaka Kumakura and Tsutomu Yabuzaki and Yoshiro Takahashi},
  title = {Spin-Singlet Bose-Einstein Condensation of Two-Electron Atoms},
  journal = {PHYSICAL REVIEW LETTERS},
  year = 2003,
}