TY  JOUR
TI  Olympiad tasks on geometry, methodical techniques for their solution
KW  olympiad
KW  geometry
KW  spatial image
KW  problem
KW  method
KW  proof
JO  Profession-Oriented School
AU  Keldibekova, A.O.
AU  Selivanova, N.S.
PY  2019
IS  7
PB  INFRA-M Academic Publishing LLC.