Casado-Martínez, MC, et al. “Interlaboratory Assessment of Marine Bioassays to Evaluate the Environmental Quality of Coastal Sediments in Spain. I. Exercise Description and Sediment Quality”. Ciencias Marinas, vol. 32, no. 1B, May 2006, pp. 121-8, doi:10.7773/cm.v32i12.1032.