@Article{ BUELA_SIERRA_CABALLO:115-117,

author = { GUALBERTO BUELA CASAL and JUAN CARLOS SIERRA FREIRE and VICENTE ENRIQUE CABALLO MANRIQUE } ,

title = { Personality differences between short and long sleepers },

journal = { Personality and Individual Differences },

year = { 1992 },

volume = { 13 },

pages = { 115-117 },

}