Theoretical Approaches, Societal Issues, and Practical Implications for School-Based and Extracurricular Talent Development: Outcomes of the Inaugural European–North American Summit on Talent Development (Part I) - Stoeger, Heidrun; Olszewski-Kubilius, Paula; Subotnik, Rena F.; Assouline, Susan G.; Ziegler, Albert (Friedrich-Alexander-Universität Erlangen-Nürnberg, 2017)