@article{pratt:2007:ccs,
    author = {Pratt, S.},
     title = {Comoving coordinate system for relativistic hydrodynamics},
   journal = {Phy. Rev. C},
  fjournal = {Physical Review C},
    volume = {75},
      year = {2007},
     pages = {(024907-1)–(024907-10)},
       doi = {10.1103/PhysRevC.75.024907}}