Last year I finished my PhD in Europe and now I'm a postdoc in North America. I work on computer science.
An year ago I wrote a paper with my former Europen supervisor and a former colleague, and submitted it to a conference. My former supervisor presented the work at the conference.
Now we just discovered that the steering committee selected our paper for a post-conference supplement in a Open Access BMC journal. We're very happy for this selection (they chose 5 papers out of 52) but there's a problem: we don't have funding to pay the ~2,000 euros publication fee for the journal.
My former supervisor has no funding at the moment; my former colleague is still a PhD student and he's broke; myself I'm a postdoc with no research funding and I'm not going to ask to my current supervisor to pay (because I don't think it's fair and anyway he'd refuse).
What should I do?
That journal publication would be very important for my career, and quite useful for our scientific community. This supplement is a very unique occasion.