MTCA.4 LLRF system for the European XFEL. - Julien Branlard; Gohar Ayvazyan; Valeri Ayvazyan; Mariusz Grecki; Matthias Hoffmann; Tomasz Jezynski; Frank Ludwig; Uros Mavric; Sven Pfeiffer; Holger Schlarb; Christian Schmidt 019; Henning Weddig; et al. (MIXDES, 2013)

Prototype of analog feedback communication system: First results of experimental study. - Anatoliy A. Platonov; Ievgen Zaitsev; Borys Jelenski; Leszek J. Opalski; Jan Piekarski; Henryk Chacinski (BlackSeaCom, 2016)