Paying for Open Access

How are authors of journal articles paying Open Access fees or Article Processing Costs? What is the administrative burden for authors? And do their research organisations have an accurate overview of all these payments?

The abridged report 'Paying for Open Access the author's perspective' and the complete results of the study including references to relevant literature 'The financial and administrative issues around article publication costs for Open Access: the author's perspective' are available to download here