Published Malaria situation in Bulgaria and surveillance measures (1991-2000) by Kurdova R.I., Vutchev D.I., Petrov P.P. Kurdova_153_162.pdf
Published Determination of PAHs in marine sediments: analytical methods and environmental concerns by Nikolaou A., Kostopoulou M., Lofrano G., Meric S. 662_published.pdf