Elke Holtkamp-Rötzler

Ultrastructural analysis of a putative magnetoreceptor in the beak of homing pigeons

W. Wiltschko, M. Winklhofer, N. Petersen, 2003, The Journal of comparative neurology.

Superparamagnetic Magnetite in the Upper Beak Tissue of Homing Pigeons

Michael Winklhofer, Gerta Fleissner, M. Winklhofer, 2000, Biometals.

Homing pigeons (Columba livia f. domestica) can use magnetic cues for locating food

W. Wiltschko, G. Fleissner, Elke Holtkamp-Rötzler, 2007, Naturwissenschaften.

Clusters of superparamagnetic magnetite particles in the upper-beak skin of homing pigeons evidence of a magnetoreceptor?

Michael Winklhofer, Gerta Fleissner, M. Winklhofer, 2001 .