TY - JOUR IS - 6422 JO - Nature PY - 1993 SN - 0028-0836 VL - 362 AU - Lohmann KJ DO - 10.1038/362703a0 LA - en N1 - FEMU ID: 11944; EMF-Portal URL: https://www.emf-portal.org/en/article/11944 SP - 703 TI - Magnetic compass orientation ER -