1. Thermochromic and photochromic inks are extremely useful in both security applicants and interactive packaging;Agosta;Ink World,2002
2. Active and intelligent packaging: an introduction;Ahvenainen,2003
3. Future Food and Drinks Packaging: Emerging Ethical, Food Safe and Convenient Formats;Annette,2008
4. Package of the month: yogurt drink uses culture straw;Anon;Dairy Foods,2002
5. New foods: probiotic drinking straws;Anon;Food Eng. Ingred.,2002