Study on the level of blood pressure and prevalence of arterial hypertension depending on the duration of occupational exposure to industrial noise / Christo Deyanov [et al.]
  Bibliogr.: p. 116. - Abstr. eng.
  In: Central European Journal of Occupational and Environmental Medicine. - ISSN 1219-1221. - 1995. 1. évf. 2. sz., p. 109-116.