00698naa#a2200193#i#450# EN\\bibl\82391 20241026013852.6 1998-8990 20240426b2024####ek#y0engy0150####ca RU STUDY OF THE EFFICIENCY OF APPLICATION OF A MOBILE POLYGON TO INCREASE THE PROFESSIONAL LEVEL OF FIRE DIVISIONS Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2024 10 с. Journal article local Борьба с пожарами. 614.842/.847 Korolev Denis S. Russkikh Dmitry V. Kalach Andrey V. journals.igps.ru