Reference Base Search Results Search results for References by krebs, b.l. back to search page Sort order: ------------------- Date ASC Author normal    Krebs, B.L.; Watters, J.V. , 2017. Simple but temporally unpredictable puzzles are cognitive enrichment. Animal Behavior and Cognition 4 (1): 119–134 File available   details back to search page Sort order: ------------------- Date ASC Author normal