@article{SM_2011_202_5_a3,
     author = {V. N. Krupski},
     title = {On symbolic models for {Single-Conclusion} {Logic} of {Proofs}},
     journal = {Sbornik. Mathematics},
     pages = {683--695},
     publisher = {mathdoc},
     volume = {202},
     number = {5},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2011_202_5_a3/}
}