Biomedical data analysis

Hi
I couldn't go through the task of biomedical data separation. Is it active now? when you say dependent sources, do you mean correlated sources like P3a and P3b ERP subcomponents?
Anyway, I was going to read the technical data at this link https://sisec2011.wiki.irisa.fr/tiki-download_wiki_attachment.php?attId=1&page=Task1%3A%20Seperation%20of%20dependent%20components
but it seems that this link is dead (security error comes up when try it). I'm interested to to this task and I would be grateful if you explain more about this task.
Best Regards
Bahador