Bes, A. Et Al. 2013. The International Classification of Headache Disorders, 3rd edition (beta version). CEPHALALGIA , vol.33, no.9 , 629-808.

Bes, A., Kunkel, R., Lance, J. W., Nappi, G., Pfaffenrath, V., Rose, F. C., ... Schoenberg, B. S.(2013). The International Classification of Headache Disorders, 3rd edition (beta version). CEPHALALGIA , vol.33, no.9, 629-808.

Bes, Andre Et Al. "The International Classification of Headache Disorders, 3rd edition (beta version)," CEPHALALGIA , vol.33, no.9, 629-808, 2013

Bes, Andre Et Al. "The International Classification of Headache Disorders, 3rd edition (beta version)." CEPHALALGIA , vol.33, no.9, pp.629-808, 2013

Bes, A. Et Al. (2013) . "The International Classification of Headache Disorders, 3rd edition (beta version)." CEPHALALGIA , vol.33, no.9, pp.629-808.

@article{article, author={Andre Bes Et Al. }, title={The International Classification of Headache Disorders, 3rd edition (beta version)}, journal={CEPHALALGIA}, year=2013, pages={629-808} }