@article{Hein2021,
author = {Hein, Anna and Baumgartner, Katrin and Fersen, Lorenzo von and Bechshoft, Thea and Woelfing, Benno and Kirschbaum, Clemens and Mastromonaco, Gabriela and Greenwood, Alex D. and Siebert, Ursula},
year = {2021},
language = {eng},
copyright = {https://creativecommons.org/licenses/by/4.0/},
title = {Analysis of hair steroid hormones in polar bears (Ursus maritimus) via liquid chromatography–tandem mass spectrometry: comparison with two immunoassays and application for longitudinal monitoring in zoos},
volume = {310},
url = "http://dx.doi.org/10.17169/refubium-31573",
}