1. WORMBASE

2. WormBase: network access to the genome and biology of Caenorhabditis elegans (Nucleic Acids Res. 2001 Jan 1;29(1):82-6)

3. Gene expression and development databases for C. elegans (Martinelli SD, Brown CG, Durbin R., SEMINARS IN CELL AND DEVELOPMENTAL BIOLOGY. 1997 Oct;8(5):459-67))