@article{10_4007_annals_2009_170_995,
     author = {Michael H. Freedman},
     title = {Complexity classes as mathematical axioms},
     journal = {Annals of mathematics},
     pages = {995--1002},
     publisher = {mathdoc},
     volume = {170},
     number = {2},
     year = {2009},
     doi = {10.4007/annals.2009.170.995},
     mrnumber = {2552117
},
     zbl = {1178.03069},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2009.170.995/}
}