I would like to know the steps to follow, and workouts for calculation while looking to have a valuation for mergers. Let me take the case on Yell: Reference is...

Yell Finance B.V. August 6, 2001, adapted from Bloomberg International. How much is Yell worth, and what would be the bid considering cross border valuation.

Please calculations workout with specific to Yell case. Please consider risky cash flow too.