Simultaneous measurement of non-commuting observables in entangled systems Erik F.G. van Heusden and Theodorus M. Nieuwenhuizen Eur. Phys. J. Special Topics, 227 15-16 (2019) 2209-2219 Published online: 05 March 2019 DOI: 10.1140/epjst/e2019-800216-2