Jp. Beaulieu, METALLICITY EFFECT ON THE CEPHEID PERIOD- LUMINOSITY RELATION AND H-0, Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie, 326(2), 1998, pp. 141-152
in the first article, we presented a review on the Cepheid PL relation
as a tool for measuring distances, and showed the sensitivity of the
method to metallicity. Accounting for it brings the recent differing e
stimates of H-0 into agreement. (C) Academie des Sciences/Elsevier, Pa
ris.