Schrey, A. ., Grispo, M. ., Awad, M. ., Cook, M. ., McCoy, E. ., Mushinsky, H. ., … Martin, L. . (2011). Broad-scale latitudinal patterns of genetic diversity among native European and introduced house sparrow (Passer domesticus) populations. Molecular Ecology, 20(6), 1133-43. https://doi.org/10.1111/j.1365-294X.2011.05001.x (Original work published 2011)