WALLNER, Jozef. Social Innovations in the Field of Management Sports Subjects. In The research of the relationship between social innovation and the economy of an enterprise in order to increase the competitiveness of the business entity : proceedings of scientific papers. - Brno : Munipress, 2017. ISBN 978-80-210-8854-2, s. 101-105. VEGA 1/0784/15.