Published
Malaria situation in Bulgaria and surveillance measures (1991-2000)
by
Kurdova R.I., Vutchev D.I. and Petrov P.P.
by Kalabokas P., Viras L., Repapis C.
by Kalabokidis Kostas D.
by Borrego C., Miranda A.I., Carvalho A.C., Fernandez C.