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Seasonal Variation of Viral Abundance in Lake Erie Beach Waters of Presque Isle State Park
Olszewski, A.; Smith, C.J.; Mauro, S.A. Pennsylvania Academy of Science; 1999 2010 p.55-59
A Comparative Study of Soil Seed Banks from Fields on Eight Organic Farms
Helsel, M.A.; Winsor, J.A. Pennsylvania Academy of Science; 1999 2010 p.60-66
Settle, A.; Brenner, F.J.; Stambaugh, A. Pennsylvania Academy of Science; 1999 2010 p.67-73
Cherepko, J.; Berry, G.J.; Keeler, S.P.; Huffman, J.E. Pennsylvania Academy of Science; 1999 2010 p.74-78
Design and Performance of Affordable Artificial Streams
Tzilkowski, C.J.; Gustafson, S.S.; Carrick, H.J. Pennsylvania Academy of Science; 1999 2010 p.79-84
Lewis, D.; Stanley, H.; D Alessandro, L.; Boyer, M.; Mysliwiec, T.; Dunbar, D.A. Pennsylvania Academy of Science; 1999 2010 p.85-90
Baxter, S.R.; Junod, R.A.; Yalda, S. Pennsylvania Academy of Science; 1999 2010 p.91-98