Variation in Age and Size in Fennoscandian Three-Spined Sticklebacks (Gasterosteus aculeatus) DeFaveri, Jacquelin ; Merilä, Juha Abstract Publication: PLoS ONE Pub Date: November 2013 DOI: 10.1371/journal.pone.0080866 Bibcode: 2013PLoSO...880866D