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2. A curve of pursuit;Colman;Bulletin of the Institute of Mathematics and its Applications,1991
3. Pursuit curves;Eliezer;Bulletin of the Institute of Mathematics and its Applications,1992
4. On Leonardo da Vinci's cat and mouse problem;Guha;Bulletin of the Institute of Mathematics and its Applications,1994
5. Pursuit curves II;Eliezer;Bulletin of the Institute of Mathematics and its Applications,1995