Guem River Environmental Research Center, National Institute of Environmental Research, Choongbook Okcheon-goon Annae-myun Dongdae-ri 395-1, Okcheon, 373-812, Korea, Republic of
Department of Biological Systems Engineering, University of Wisconsin-Madison, 460 Henry Mall, Madison, WI 53706, United States
Dipartimento IMAGE and International center for Hydrology "D. Tonini", University of Padova, dept. IMAGE, via Loredan 20, Padova, 35131, Italy