@book(beggs2008oracles,
 author       = {Edwin Beggs and Jos{\'e} F{\'e}lix Costa and Bruno Loff and John V. Tucker},
 year         = {2008},
 title        = {Oracles and advice as measurements},
 series       = {Lecture Notes in Comput. Sci.},
 volume       = {5204},
 publisher    = {Springer, Berlin},
 doi          = {10.1007/978-3-540-85194-3{\_}6},
)
@article(beggs2013oracles,
 author       = {Edwin Beggs and Jos{\'e} F{\'e}lix Costa and Po{\c{c}}as, Diogo and John V. Tucker},
 year         = {2013},
 title        = {Oracles that measure thresholds: the {T}uring machine and the broken balance},
 journal      = {J. Logic Comput.},
 volume       = {23},
 number       = {6},
 pages        = {1155--1181},
 doi          = {10.1093/logcom/ext047},
)
@article(beggs2014analogue,
 author       = {Edwin Beggs and Jos{\'e} F{\'e}lix Costa and Po{\c{c}}as, Diogo and John V. Tucker},
 year         = {2014},
 title        = {An analogue-digital {C}hurch-{T}uring thesis},
 journal      = {Internat. J. Found. Comput. Sci.},
 volume       = {25},
 number       = {4},
 pages        = {373--389},
 doi          = {10.1142/S0129054114400012},
)
@article(beggs2012impact,
 author       = {Edwin J. Beggs and Jos{\'e} F{\'e}lix Costa and John V. Tucker},
 year         = {2012},
 title        = {The impact of models of a physical oracle on computational power},
 journal      = {Math. Structures Comput. Sci.},
 volume       = {22},
 number       = {5},
 pages        = {853--879},
 doi          = {10.1017/S0960129511000557},
)
@article(BeggsNewtonian,
 author       = {Edwin J. Beggs and John V. Tucker},
 year         = {2007},
 title        = {Can {N}ewtonian systems, bounded in space, time, mass and energy compute all functions?},
 journal      = {Theoret. Comput. Sci.},
 volume       = {371},
 number       = {1-2},
 pages        = {4--19},
 doi          = {10.1016/j.tcs.2006.10.010},
)
@inproceedings(WhenDoesAPhysicalSystemCompute,
 author       = {Clare Horsman and Susan Stepney and Rob C Wagner and Viv Kendon},
 year         = {2014},
 title        = {When does a physical system compute?},
 booktitle    = {Proc. R. Soc. A},
 volume       = {470},
 organization = {The Royal Society},
 pages        = {20140182},
 doi          = {10.1098/rspa.2014.0182},
)
@article(komorowski1999rough,
 author       = {Jan Komorowski and Zdzis{\l}aw Pawlak and Lech Polkowski and Andrzej Skowron},
 year         = {1999},
 title        = {Rough sets: a tutorial},
 journal      = {Rough fuzzy hybridization: A new trend in decision-making},
 pages        = {3--98},
 doi          = {10.1.1.37.2477},
)
@book(weihrauch2012computable,
 author       = {Klaus Weihrauch},
 year         = {2000},
 title        = {Computable analysis},
 series       = {Texts in Theoretical Computer Science. An EATCS Series},
 publisher    = {Springer-Verlag, Berlin},
 doi          = {10.1007/978-3-642-56999-9},
)