W. Florkowski et W. Broniowski, MELTING OF THE QUARK CONDENSATE IN THE NJL MODEL WITH MESON LOOPS, Physics letters. Section B, 386(1-4), 1996, pp. 62-68
Temperature dependence of the quark condensate is studied in the Nambu
-Jona-Lasinio model with meson loops. Substantial differences are foun
d compared to the results with quark loops only.