Hi everyone!

I am working nowadays with bird cervical vertebrae and I haven trying to find this reference for a while, but it has been imposible to me to do it.

As it is an old research is quite elusive to find it on the internet, but maybe you have access to it.

BOAS, J. E. V. 1929. Biologisch-anatomische Studien über den Hals der Vögel. Det Kongelige Danske Videnskabernes Selskabs Skrifter, Naturvidenskabelig og Mathematisk Afdeling 9, 101–222

Any help would be appreciated

Thank you very much

Manuel Pérez