2 citations to https://www.mathnet.ru/eng/jmsny5

1. S. M. Aseev, “Necessary conditions for the optimality and sustainability of solutions in infinite-horizon optimal control problems”, Mathematics, 11:18 (2023), 3851      
2. S. M. Aseev, “Conditional cost function and necessary optimality conditions for infinite horizon optimal control problems”, Dokl. Math., 108:3 (2023), 425–430