@article{46b3f3791c824bb288a581b11b891066,
title = "Quantity and quality of practice:interrelationships between task organization and student skill level in physical education",
keywords = "Secondary school, Student behavior, Track and field",
author = "Hastie, {Peter A.} and Antonio Calder{\'o}n and Jos{\'e} Palao and Enrique Ortega",
year = "2011",
month = dec,
doi = "10.1080/02701367.2011.10599815",
language = "English",
volume = "82",
pages = "784--787",
journal = "Research Quarterly for Exercise and Sport",
issn = "0270-1367",
number = "4",
}