Adolescent male volleyballers' serve proficiency in Estonian championships in 2005, 2006 and 2008 - Stamm, M.; Stamm, R.; Koskel, S. (17th Annual Congress of the European College of Sport Science (ECSS), Bruges, 4. -7. July 2012, 2012)
Keywords: volleyball; male; competition; attack; technique; performance; Belgium; sport games; junior sports