...Martin Dietrich Brauch, Exhaustion of Local Remedies in International Investment Law, IISD Best Practice Series 2, https://www.iisd.org/system/files/publications/best-practices-exhaustion-local-remedies-law-investment-en.pdf; Christoph Schreuer, Travelling the BIT Route of Waiting Periods, Umbrella Clauses and Forks...