Published
Malaria situation in Bulgaria and surveillance measures (1991-2000)
by Kurdova R.I., Vutchev D.I., Petrov P.P.
by Kurdova R.I., Vutchev D.I., Petrov P.P.
by Cancho B., Ventura F.
by Nieuwenhuijsen M.J.
by Benavides Francisco, Veenstra J.N.