00521naa#a2200169#i#450# EN\\bibl\66873 20250421100145.1 1998-8990 20170925b2017####ek#y0engy0150####ca RUS RU DIAGNOSTICS OF SULPHATATION OF PLATE OF LEAD BATTERY Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2017 4 с. Journal article local Maslakov M D journals.igps.ru