@article{PhysRevA.89.032109, title = {Value-indefinite observables are almost everywhere}, author = {Alastair A. Abbott and Cristian S. Calude and Karl Svozil}, journal = {Physical Review A}, volume = {89}, issue = {3}, pages = {032109}, numpages = {7}, year = {2014}, month = {Mar}, publisher = {American Physical Society}, doi = {10.1103/PhysRevA.89.032109}, url = {http://dx.doi.org/10.1103/PhysRevA.89.032109}, eprint = {arXiv:1309.7188} }