9All Morsali, Alireza Mahjoub. Coordination polymers of lead (I]) with 4, 4-bipyridine: Syntheses and structures [J]. Polyhedron, 2004,23 : 2427.
10Brian Rippey, Neil Rose, Han dong Yang, et al. An assess- ment of toxicity in profundal lake sediment due to deposition of heavy metals and persistent organic pollutants from the atmosphere[J]. Environ Int, 2008,34(3) : 345.
