двустороннее инвестиционное соглашение(тж. договор: A bilateral investment treaty (BIT) is an agreement between two countries regarding promotion and protection of investments made by investors from respective countries in each other’s territory. The great majority of IIAs are BITs.'More)
двухсторонняя реституция(Restitution is either unilateral (based on laws or administrative rulings) or bilateral (negotiated with or without mediation or referred to arbitration). Olga Z)