Twin Families of Bisolitons in Dispersion Managed Systems
  We calculate bisoliton solutions using a slowly varying stroboscopic equation. The system is characterized in terms of a single dimensionless parameter. We find two branches of solutions and describe the structure of the tails for the lower branch solutions. 
Ildar Gabitov, Robert Indik, Pavel Lushnikov, Linn Mollenauer, Maxim   Shkarayev