[Polish and Austrian Maths Olympiads]

Polish and Austrian Mathematics Olympiads 1981-1995, Selected Problems with Multiple Solutions

ME Kuczma and E Windischbacher

This is a rich collection of problems from the national Olympiads of Austria and Poland, which both have exceptionally strong traditions. The particular interest in the problems selected is that all have at least two independent solutions, highlighting one of the beauties of mathematics. The book has 145 pages.