@article{CTT100583947,
  author = {Kozo Toyota and Keiko Horikawa and Rader S. Jensen and kohei Omori and Subaru Kawasaki and Shigekazu Ito and Masaaki Yoshifuji and Morita},
  title = {An Improved Preparative Method for 1,2-Diaryl-3,4-diphosphinidenecyclobutenes and Its Application to the Studies of 1,2-Bis(arylthienyl)-3,4-diphosphinidenecyclobutenes},
  journal = {Bull. Chem. soc. Jpn},
  year = 2007,
}