Acoustic attenuation study on the normal-state pseudogap in underdoped Q. M. Zhang, Y. N. Wang, A. Li, Q. Qiu, X. S. Xu, Y. Feng and L. ZhouEurophys. Lett., 47 1 (1999) 104-109DOI: https://doi.org/10.1209/epl/i1999-00358-9
