@article{CTT100632962, author = {S. Okubo and Akio Taketani and H. Ohta and T. Kunimoto and Y. Inagaki and T. Saito and M. Azuma and M. Takano and H. Kikuchi}, title = {High Field ESR Measurements of S=1/2 Diamond Chain Substance Cu3(CO3)2(OH)2 at the Magenetization Plateau Region}, journal = {Progress of Theoretical Physics Supplement}, year = 2005, }