00768naa#a2200193#i#450# EN\\bibl\112602 20260321174325.6 1998-8990 20251226b2025####ek#y0engy0150####ca RU INVESTIGATION OF THE KINETICS AND MECHANISM OF THERMAL DEGRADATION OF EGGSHELLS AS A POTENTIAL RAW MATERIAL RESOURCE Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2025 11 с. Journal article local Рациональное использование природных ресурсов. 504.062.2 Budykina Tat'yana Alekseevna Sokolov Leonid I. Smirnova Irina M. journals.igps.ru