text: 
  // Author: Dimitri Reiswich
         FixedRateCoupon(Real nominal,
                          const Date& paymentDate,
                          const InterestRate& interestRate,
                          const DayCounter& dayCounter,
                          const Date& accrualStartDate,
                          const Date& accrualEndDate,
                          const Date& refPeriodStart = Date(),
                          const Date& refPeriodEnd = Date())