Shevtsova, T., Kačániová, M., Garkava, K., Brindza, J. and Petrova, J. 2014. CONTAMINATION OF BETULA VERRUCOSA EHRH. POLLEN BY MICROORGANISMS, MYCOTOXINS AND HEAVY METALS. Journal of microbiology, biotechnology and food sciences. 3, 6 (Jun. 2014), 509–513.