http://ferreicatasus.blogspot.com/2011/03/volvemos-salir-en-wine-spirits.html
http://www.beverageworld.com/index.php?option=com_content&view=article&id=39183:research-finds-one-in-four-willing-to-pay-more-for-eco-friendly-products&catid=3:daily-headlines&Itemid=173