Introduction. The development of modern Russia is characterized by a high degree of differentiation in the level of socio-economic development of the constituent entities of the Russian Federation. Interregional cooperation is one of the tools to overcome this differentiation. https://www.bekindtopets.com/great-pick-Lost-Oil-Painting-Von-Bredow-s-Death-Ride-August-16th-1870-by-Jules-Bastien-LePage-mega-offer/