Patrizio Cintioli, Riccardo Silvestri. Helping by Unambiguous Computation and Probabilistic Computation. Theory Comput. Syst., 30(2):165-180, 1997.
@article{CintioliS97:0, title = {Helping by Unambiguous Computation and Probabilistic Computation}, author = {Patrizio Cintioli and Riccardo Silvestri}, year = {1997}, researchr = {https://researchr.org/publication/CintioliS97%3A0}, cites = {0}, citedby = {0}, journal = {Theory Comput. Syst.}, volume = {30}, number = {2}, pages = {165-180}, }