Needful-motivational tasks as an effective condition for the technical training of schoolchildren aged 11-12 during the training of the volleyball section
Nagovitsyn, Rs,
Kudryavtsev, Md,
Osipov, Ayu,
Altuvaini, Ah,
Markov, Kk,
Doroshenko, Sa,
Kuzmin, Va,
Savchuk, An,
Kamosa, Tl,
Plotnikovа, Ii
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