2 citations to https://www.mathnet.ru/rus/jpcs6

1. Yurii Averboukh, “Nonlocal Balance Equation: Representation and Approximation of Solution”, J Dyn Diff Equat, 2024  
2. Kristian Bredies, Marcello Carioni, Silvio Fanzon, “A superposition principle for the inhomogeneous continuity equation with Hellinger–Kantorovich-regular coefficients”, Communications in Partial Differential Equations, 47:10 (2022), 2023