· D-179 Imperial Tobacco Limited - Switching Analysis, August 1991 : p. 465043210 Although switchers of all ages represent opportunity for new business, targeting young consumers continues to be a strategic importance in terms of future growth because of their switching behaviour, twice the rate of total smokers. 
· D-179 Imperial Tobacco Limited - Switching Analysis, August 1991 : p. 465043210 «Although switchers of all ages represent opportunity for new business, targeting young consumers continues to be a strategic importance in terms of future growth because of their switching behaviour, twice the rate of total smokers.» 