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 Ultrafine particles (UFP) and health effects. Dangerous. Like no other PM? Review and analysis by Politis Marios, Pilinis Christos, Lekkas Theodoros 439-452_579_POLITIS_10-3.pdf