A collection of essays titled Investment Arbitration in Central and Eastern Europe, edited by Csongor istván Nagy (University of Szeged, Hungary), has recently been published by Edward Elgar. See here for more information on the book, its contents and contributors.
As noted in the publisher’s blurb, Central and Eastern Europe (CEE) appears to be the testing ground for investment arbitration in Europe: the majority of the cases against EU Member States are proceedings launched against countries from the region. Despite their relevance, CEE experiences have not been analysed in a comprehensive manner. The book aims to fill this gap.
The introductory chapter, written by the editor, is titled Intra-EU BITs after Achmea: A Cross-Cutting Issue and can me downloaded via SSRN.