00700naa#a2200193#i#450# EN\\bibl\67247 20241006113540.7 1998-8990 20230706b2023####ek#y0engy0150####ca RU TO THE QUESTION OF THE DETERMINATION OF AMIDE NITROGEN IN BUILDING MATERIALS Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2023 8 с. Journal article local Аммонийный азот. Амиды азота и т. д.. 631.841 Medvedeva Lyudmila V. Makarchuk Galina V. Brantsevich Gennady V. journals.igps.ru