Pion scalar density and chiral symmetry restoration at finite temperature and density G. Chanfray, D. Davesne, J. Delorme, M. Ericson and J. Marteau Eur. Phys. J. A, 8 2 (2000) 283-289 Published online: 15 June 2000 DOI: 10.1007/s100500070111