Published Risk assessment of chemicals in a toxicological laboratory: A case study by Dimitriou A. and Tsoukali H. 330-334_DIMITRIOU_402_8-3.pdf
Published Malaria situation in Bulgaria and surveillance measures (1991-2000) by Kurdova R.I., Vutchev D.I. and Petrov P.P. Kurdova_153_162.pdf