@unpublished{ConfortiLeonardMurretal.2014,
  author  = {Giovanni Conforti and Christian L{\´e}onard and R{\"u}diger Murr and Sylvie Roelly},
  title   = {Bridges of Markov counting processes : reciprocal classes and duality formulas},
  institution = {Institut f{\"u}r Mathematik},
  series    = {Preprints des Instituts f{\"u}r Mathematik der Universit{\"a}t Potsdam},
  number    = {3 (2014) 9},
  pages     = {12},
  year    = {2014},
}