Study of the effects of confinement in the collective excitations of liquid deuterium M. A. González, C. Mondelli, C. Cabrillo, R. Fernández-Perea, F. J. Bermejo, F. Albergamo, E. Enciso, C. Carbajo and M. J. Torralvo Eur. Phys. J. Special Topics, 141 (2007) 35-38 Published online: 29 March 2007 DOI: 10.1140/epjst/e2007-00012-4