% pubman genre = article
@article{item_1552978,
title = {{Tuning towards tomorrow? Common nightingales Luscinia megarhynchos change and increase their song repertoires from the first to the second breeding season}},
author = {Kiefer, Sarah and Sommer, Christina and Scharff, Constance and Kipper, Silke and Mundry, Roger},
language = {eng},
doi = {10.1111/j.1600-048X.2009.04500.x},
year = {2009},
date = {2009},
journal = {{Journal of Avian Biology}},
volume = {40},
number = {2},
pages = {231--236},
}