Distinct spinon and holon dispersions in photoemission spectral functions from one-dimensional SrCuO2. - Kim, B. J.; Koh, H.; Rotenberg, E.; Oh, S.-J.; Eisaki, H.; Motoyama, N.; Uchida, S.; Tohyama, T.; Maekawa, S.; Shen, Z.-X.; Kim, C. (Nature Physics, 2006)