The intensity of race walker load at various performance at 20 and 50 km

PUPIŠ, Martin. The intensity of race walker load at various performance at 20 and 50 km. In World race walking research : [monograph]. 1. vyd. - Banská Bystrica : Univerzita Mateja Bela, Fakulta humanitných vied, Katedra telesnej výchovy a športu, 2011. ISBN 978-80-557-0159-2, s. 7-25 [1, 23 AH].