Leontiev D. A. , Osin E. N. : International conference "Problems of sense in man-oriented sciences" (in Russian) 05'6 p.133
Kaliteyevskaya E. R. , Leontiev D. A. , Osin Ye. N. , Borodkina I. I. :
Meaning, adjustment and self-determination in adolescents
07'2 p.68