Seeing the Elephant: Importance of Spatial and Temporal Coverage in a Large-scale Volunteer-based Program to Monitor Horseshoe Crabs (David R. Smith and Stew Michels, 2006)
Horseshoe Crab Spawning Activity in Delaware Bay, USA, After Harvest Reduction: A Mixed-Model Analysis (David R. Smith and Timothy J. Robinson, 2015)
Spatial and Temporal Distribution of Horseshoe Crab (Limulus polyphemus) Spawning in Delaware Bay: Implications for Monitoring (David R. Smith, Penelope S. Pooler, Benjie L. Swan, Stewart F. Michels, William R. Hall, Peter J. Himchak, and Michael J. Millard, 2002)