@misc{Walczak_Małgorzata_Validation, author={Walczak, Małgorzata and Tomczak, Maciej}, copyright={Akademia Wychowania Fizycznego w Poznaniu}, howpublished={online}, publisher={Akademia Wychowania Fizycznego w Poznaniu}, language={eng}, type={artykuły}, title={Validation of the Polish version of Sport Motivation Scale (SMS). Effect of gender, level of participation and sport type on intrinsic and extrinsic motives}, keywords={self-determination, Sport Motivation Scale, validity, motivation}, }