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Akusherstvo I Ginekologiia|November 21, 2007
[Influence of occupational vibration on the female reproductive system and function]A PenkovCentral European Journal of Public Health|September 28, 1999
Effect of vibrations on male reproductive system and functionA Penkov, D TzvetkovCentral European Journal of Public Health|September 1, 1996
Male reproductive function in workers exposed to vibrationA Penkov, R Stanislavov, D TzvetkovGegenbaurs Morphologisches Jahrbuch|January 1, 1986
Glomerulometric data in experimental toxicological investigationsV Enchev, M Radeva, A PenkovPageof 1