The development al potential of the embryos of wolf spider Xerolycosa nemoralis from areas variously burdened with metalsA. Babczyńska, G. Wilczek, E. Szulińska, P. Migula and M. BinkowskiE3S Web of Conferences, 1 (2013) 34006DOI: https://doi.org/10.1051/e3sconf/20130134006