00483naa#a2200169#i#450# EN\INFRA-M\bibl\10043 20241225052239.3 1998-0744 20151218b2015####ek#y0engy0150####ca RUS RU Additional Technology of Pre-Profile Training Journal article Moscow INFRA-M Academic Publishing LLC. 2015 8 с. Journal article local Bychkov Anatoliy Vasil'evich naukaru.ru