@inproceedings {BaHeMa92,
	title = {Characterizations of logarithmic advice complexity classes},
	year = {1992},
	pages = {315-321},
	publisher = {IFIP transactions},
	organization = {IFIP transactions},
	author = {J.L. Balc{\'a}zar and M. Hermo and E. Mayordomo}
}

