The sulfur isotope effect on the Peierls transition temperature in o-TaS3 V.E. Minakova, A.M. Nikitina, S.V. Zaitzev-Zotov et A.N. Taldenkov J. Phys. IV France, 09 PR10 (1999) Pr10-271-Pr10-272 DOI: 10.1051/jp4:19991070