00507naa#a2200169#i#450# EN\INFRA-M\bibl\3095 20240429074644.1 1998-1740 20140617b2014####ek#y0engy0150####ca RUS RU Formation of Pupils’ Research Competence at Mathematics Lessons in Regular School Journal article Moscow INFRA-M Academic Publishing LLC. 2014 7 с. Journal article local Desnitskaya V. naukaru.ru