Correction of errors and increasing the front crawl swimming technique efficiency of students of physical education and sport

MANDZÁK, Peter - MANDZÁKOVÁ, Martina. Correction of errors and increasing the front crawl swimming technique efficiency of students of physical education and sport. [1st ed.]. Poznań : Ośrodek Rekreacji, Sportu i Edukacji w Poznaniu, 2014. 87 s. ISBN 978-83-62750-11-5.