5. Гюров Р., Х. Харизанов, Геопатогенни зони в България и качество на живот. Годишник на департамент "Природни науки" 2014, НБУ, 2015, 66-78, ISSN2367-6302.

Abstract: The people living environment is influenced by various factors. Ussually, these factors are controlled by the natural resources in a specified area - their presence as well as the manner they utilizated from the people. The investigation in Bulgaria is connected to defining of zones with element concentrations over limits help to identify the risk areas in terms of quality of human life. The impact of various geopathogenic factors on organisms can cause changes in the structures bearing genetic information and appearance of different mutations.