TY - CPAPER AU - Kirill Petropavlovskii AU - Mikhail Sulman AU - Victoria Petropavlovskaya AU - Tatiana Novichenkova TI - MINERAL COMPOSITIONS BASED ON GYPSUM AND A MODIFYING COMPLEX FROM FUEL INDUSTRY WASTE T2 - SWS 2026 Conference Preprints PY - 2026 PB - STEF92 Technology ER -