On the Group Structure of the Kalb-Ramond Gauge Symmetry
  The transformation properties of a Kalb-Ramond field are those of a gauge field; however, it is not clear which is the group structure these transformations are associated with. The purpose of this letter is to establish a basic framework in order to clarify the group structure underneath the 2-form gauge potential. 
M. Botta Cantcheff (CBPF-GFT)