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Podlas, Katarzyna; Helfenstein, Fabrice Noël; Richner, Heinz; Sorci, Gabriele (2013). Brood Reduction via Intra-clutch Variation in Testosterone - An Experimental Test in the Great Tit. PLoS ONE, 8(2), e56672. Public Library of Science 10.1371/journal.pone.0056672
Podlas, Katarzyna; Richner, Heinz (2013). Partial incubation and its function in great tits (Parus major)—an experimental test. Behavioral Ecology, 24(3), pp. 643-649. Oxford University Press 10.1093/beheco/ars224
