Reinhard F. Werner Leibniz Universität Hannover https://www.itp.uni-hannover.de/~werner/ Papers Distillability and positivity of partial transposes in general quantum field systems Rainer Verch, Reinhard F. Werner March 11, 2004 open access link Rev.Math.Phys. 17 (2005) 545-576 Bell's Inequalities and quantum field theory I. General setting Stephen J. Summers, Reinhard F. Werner May 27, 1987 Bell's inequalities, algebraic quantum field theory J. Math. Phys. 28, 1987, 2440–2447