I have searched the web a lot and could not find an answer that fits my situation. Here are two links that are quite contradictory:
I visited Portugal in Dec 2012 for 29 days on a Schengen visa valid from Dec 1, 2012 to Feb 1, 2013 for research purposes (I am a Ph.D. student). I want to visit Sweden from Feb 10, 2013 to May 10, 2013 (89 days). I have applied for a Schengen visa again (for research). Will the 90/180 rule be applicable to me?