@article{ZNSL_2012_407_a3,
     author = {M. Carl and B. Z. Moroz},
     title = {On {a~Diophantine} representation of the predicate of provability},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {77--104},
     year = {2012},
     volume = {407},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2012_407_a3/}
}