<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Friends or food? Social contact versus food as a reward for rats in the operant chamber"^^ . "2023" . . . . . . "Robert"^^ . "Krämer"^^ . "Robert Krämer"^^ . . . . . . "Friends or food? Social contact versus food as a reward for rats in the operant chamber (PDF)"^^ . . . "diss24_053.pdf"^^ . . . "Friends or food? Social contact versus food as a reward for rats in the operant chamber (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Friends or food? Social contact versus food as a reward for rats in the operant chamber (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Friends or food? Social contact versus food as a reward for rats in the operant chamber (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Friends or food? Social contact versus food as a reward for rats in the operant chamber (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Friends or food? Social contact versus food as a reward for rats in the operant chamber (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #35604 \n\nFriends or food? Social contact versus food as a reward for rats in the operant chamber\n\n" . "text/html" . .