Hello: Sorry, I don't know why. but the link in the first post doesn't works. Flower Bulb Research Program http://flowerbulbs.cornell.edu/newsletter/… Number 23 (May 2010) Lily Perennializing in Ithaca, Louisiana and Holland http://flowerbulbs.cornell.edu/newsletter/… There are old newsletter of Number 3. (April 2004) Narcissus perennialization http://flowerbulbs.cornell.edu/newsletter/… Number 4. (October 2004) Hyacinth perennialization http://flowerbulbs.cornell.edu/newsletter/… Number 10. (May 2006) Cutflower Hybrid Lilies as Garden Plants http://flowerbulbs.cornell.edu/newsletter/… Fierycloud, Taiwan.