Brinson, Mark M.; Eilers, H. P.; Klopatek, J. M.; Nixon, Scot; Peters, D.; Turner, R. E.; Whigham, Dennis F.; Smith, R. D.(U.S. Fish and Wildlife Service, Western Energy and Land Use Team, 1984)
Takasu, Hideki; Kawano, Shoichi; Kato, Hidetoshi; Sato, Toshiyuki; Utech, Frederick H.; Whigham, Dennis F.(Monbusho International Scientific Research Program, 1992)