The 7 th Asian-Pacific Astronomy Olympiad (November 2011) : . ... Only students did not participated at the IAO-2011 may participate in the APAO-2011 (that is a student may participate in the 16 th IAO or in the 7 th APAO but not in both of these Olympiads). ... National representation quota at APAO-2011 is (up to) 8 students and 2 team leaders (the same number is at the Asian Physics Olympiad): not more than 4 participants for the group Alpha, not more than 4 participants for the group Beta. ...