Valuing growth is an art. The readings below will help you think about how to assess growth in your valuation.
Greenwald_2005_Inv_Process_Pres_Gabelli in London This lecture places valuing growth in the overall context of value investing.
Greenwald-Class-Notes-5-Liz-Claiborne-Valuing-Growth-2 See pages 10 through 14 for a discussion on valuing growth.
Newer Methods for Valuing Growth Stocks_1962_Security Analysis Ben Graham tackles a tough subject.