Spin-Peierls instability in Per2 [M(mnt)2] compounds probed by specific heat G. BONFAIT, M.J. MATOS, R.T. HENRIQUES et M. ALMEIDA J. Phys. IV France, 03 C2 (1993) C2-251-C2-254 DOI: 10.1051/jp4:1993250