@article{Baumann2021, author = {Baumann, Veronika and Del Santo, Flavio and Smith, Alexander R. H. and Giacomini, Flaminia and Castro-Ruiz, Esteban and Brukner, Caslav}, year = {2021}, pages = {524}, title = {Generalized probability rules from a timeless formulation of Wigner's friend scenarios}, volume = {5}, journal = {Quantum} }