ret << "Description of field is : \"" << getDescription() << "\"\n";
ret << "FieldDouble space discretization is : " << _type->getStringRepr() << "\n";
ret << "FieldDouble time discretization is : " << _time_discr->getStringRepr() << "\n";
ret << "Description of field is : \"" << getDescription() << "\"\n";
ret << "FieldDouble space discretization is : " << _type->getStringRepr() << "\n";
ret << "FieldDouble time discretization is : " << _time_discr->getStringRepr() << "\n";