Validating Coordination Schemes between Transmission and Distribution System Operators using a Laboratory-Based Approach. - Filip Pröstl Andrén; Thomas I. Strasser; Julien Le Baut; Marco Rossi 002; Giacomo Vigano; Giacomo Della Croce; Seppo Horsmanheimo; Armin Ghasem Azar; Adrian Ibañez (CoRR, 2019)