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Mathematical and Computer Modelling, 52, pp. 318-333.
Combinatorics, Probability & Computing, 18 (3)., pp. 309-333.
Quantum Information and Computation, 8 (5)., pp. 411-429.
Annales Universitatis Scientiarum Budapestinensis de Rolando Eötvös Nominatae. Sec. Computatorica, 28, pp. 213-233.