Format DiscreteTrajectoryIterator::MakeReference.
Format DiscreteTrajectoryIterator::MakeReference.

mockingbirdnest/Principia,mockingbirdnest/Principia,mockingbirdnest/Principia,pleroy/Principia,pleroy/Principia,pleroy/Principia,mockingbirdnest/Principia,pleroy/Principia