Akimova M. K. , Gurevich Ê. Ì. , Zarkhin V. G. : Diagnosis of individual-psychological differences in learning 84'6 p.71
Yakimanskaya I. S. , Zarhin V. G. , Kadayas H-M. H. : Space cognition test: working out and application 91'1 p.128
The authors