@article{MattielloSorgeStoeckeretal.2006, author = {Raffaele Mattiello and Heinz Sorge and Horst St{\"o}cker and Walter Greiner}, title = {K/π ratios in relativistic nuclear collisions : a signature for the quark-gluon plasma?}, journal = {Physical review letters}, volume = {63}, number = {14}, pages = {1459 -- 1462}, url = {http://link.aps.org/abstract/PRL/v63/p1459}, year = {2006}, }