1. Bowers, N.L., Gerber, H.U., Hickman, J.C., Jones, D.A., Nesbitt, C.J., 1997. Actuarial Mathematics, 2nd Edition. Society of Actuaries, Schaumburg, IL.
2. A family of fractional age assumptions;Jones;Insurance: Mathematics and Economics,2000
3. Jordan, C.W., 1975. Life Contingencies, 2nd Edition. Society of Actuaries, Chicago, IL.
4. Some observations on actuarial approximations (with discussion);Mereu;Transactions of the Society of Actuaries Part I,1961
5. Statistical independence and fractional age assumptions (with discussion);Willmot;North American Actuarial Journal,1997