00644naa#a2200181#i#450# EN\\bibl\103208 20250815093328.5 2782-1927 20250628b2025####ek#y0engy0150####ca ENG RU The prospective estimations of demographic problem addressing in the Russian Federation as a key factor in increasing the country's international competitiveness Journal article Yaroslavl Yaroslavl State Technical University 2025 8 с. Journal article local Tebekin Alexey Vasilyevich Egorova Aleksandra Alekseevna jraic.com