TY - JOUR AU - Richard Azuah AU - S. AU - M. AU - H. C2 - Physical Review B DA - 2013-07-22 LA - en PB - Physical Review B PY - 2013 TI - Phonon-Roton Modes of Liquid 4He Beyond the Roton in the Porous Medium MCM-41 UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=914968 ER -