00525naa#a2200169#i#450# EN\\bibl\87905 20250819103517.2 2074-8183 20151225b2015####ek#y0engy0150####ca RUS RU PREPARATION OF SAMPLES AND TESTS FOR COMPARATIVE RESEARCH AS A PROCEDURAL ACTION Journal article Volgograd Volgograd Academy of the Ministry of Internal Affairs of Russia 2015 7 с. Journal article local va-mvd.editorum.ru