1. Monographia Tiliae Generis;Bayer;Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien,1862
2. Neural Computing: An Introduction
3. Tiliaceae;Chang;Flora Reipublicae Popularis Sinicae,1989
4. Clark JY . 2000. Botanical identification and classification using artificial neural networks. Unpublished PhD Thesis, The University of Reading, UK.