Necessizy of Regular Health Control of Former Asbestos Workers / Mária Posgay, Kálmán Kardos Bibliogr.: p. 323-324. - Abstr. eng. In: Central European Journal of Occupational and Environmental Medicine. - ISSN 1219-1221. - 2009. 15. évf. 4. sz., p. 317-324. : ill.