APA

Bjørk M. H., Stovner L. J., Nilsen B. M., Stjern M., Hagen K. & Sand T. (20090612). The occipital alpha rhythm related to the "migraine cycle" and headache burden: a blinded, controlled longitudinal study. : Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology.

Chicago

Bjørk M H, Stovner L J, Nilsen B M, Stjern M, Hagen K and Sand T. 20090612. The occipital alpha rhythm related to the "migraine cycle" and headache burden: a blinded, controlled longitudinal study. : Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology.

Harvard

Bjørk M. H., Stovner L. J., Nilsen B. M., Stjern M., Hagen K. and Sand T. (20090612). The occipital alpha rhythm related to the "migraine cycle" and headache burden: a blinded, controlled longitudinal study. : Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology.

MLA

Bjørk M H, Stovner L J, Nilsen B M, Stjern M, Hagen K and Sand T. The occipital alpha rhythm related to the "migraine cycle" and headache burden: a blinded, controlled longitudinal study. : Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology. 20090612.