About the Health Scientific Justification of Old-Age and Early Retirement Systems - Proposal for an Early Retirement Replacement System  / György Ungváry [et al.]
  Bibliogr.: p. 178-181. - Abstr. eng.
  In: Central European Journal of Occupational and Environmental Medicine. - ISSN 1219-1221. - 2010. 16. évf. 3-4. sz., p. 151-181. : ill.