<secondary-title/> </titles> <pages/> <volume/> <number/> <keywords> <keyword>Mood states</keyword> <keyword>Internal validity</keyword> <keyword>Confirmatory factor analysis</keyword> <keyword>Adolescents</keyword> <keyword>Sport</keyword> </keywords> <dates> <year/> <pub-dates> <date>2011</date> </pub-dates> </dates> <abstract/> </record> </records> </xml>

Andrade, Elena Arce, Constantino Garrido, Javier Torrado, Julio Francisco, Cristina De <secondary-title/> </titles> <pages/> <volume/> <number/> <keywords> <keyword>Mood states</keyword> <keyword>Internal validity</keyword> <keyword>Confirmatory factor analysis</keyword> <keyword>Adolescents</keyword> <keyword>Sport</keyword> </keywords> <dates> <year/> <pub-dates> <date>2011</date> </pub-dates> </dates> <abstract/> </record> </records> </xml>