TY - GEN TI - Brillouin-scattering studies of the transverse acoustic modes of incommensurate K2SeO4 SN - 0163-1829 PY - 1991/// PB - Physical review. B, Condensed matter N1 - Publication Type: Journal Article UR - https://doi.org/10.1103/physrevb.44.6621 ER -