Today's talented youth field hockey players, the stars of tomorrow? : a study on talent development in field hockey / Marije Titia Elferink-GemserToday's talented youth field hockey players, the stars of tomorrow? : a study on talent development in field hockey / Marije Titia Elferink-GemserOlympia bestaat : grenzen verleggen voor sporttalent : Lectoraat Herkennen en Ontwikkelen van Sporttalent, Hogeschool van Arnhem en Nijmegen / Marije T. Elferink-Gemser