by ANTHONY, ROBERT G, FORSMAN, ERIC D, FRANKLIN, ALAN B, ANDERSON, DAVID R, BURNHAM, KENNETH P, WHITE, GARY C, SCHWARZ, CARL J, NICHOLS, JAMES D, HINES, JAMES E, OLSON, GAIL S, ACKERS, STEVEN H, ANDREWS, LAWRENCE S, BISWELL, BRIAN L, CARLSON, PETER C, DILLER, LOWELL V, DUGGER, KATIE M, FEHRING, KATHERINE E, FLEMING, TRACY L, GERHARDT, RICHARD P, GREMEL, SCOTT A, GUTIÉRREZ, R. J, HAPPE, PATTI J, HERTER, DALE R, HIGLEY, J. MARK, HORN, ROBERT B, IRWIN, LARRY L, LOSCHL, PETER J, REID, JANICE A, SOVERN, STAN G
Published in Wildlife monographs (01.08.2006)

by Richard Gerhardt, Stitt, Mark, Heldt, Hans W.
Published in Plant physiology (Bethesda) (01.02.1987)

by Gerhardt, Richard P, Gerhardt, Dawn M, Vasquez, Miguel Angel
Published in The Condor (Los Angeles, Calif.) (01.02.2004)

by Gerhardt, R, Heldt, H.W
Published in Plant physiology (Bethesda) (01.07.1984)

by Stitt, Mark, Richard Gerhardt, Birgit Kürzel, Heldt, Hans W.
Published in Plant physiology (Bethesda) (01.08.1983)

by Whitacre, David F. (David Frederick)
Year of Publication 2012

by Frye, Graham G, Gerhardt, Richard P
Published in The Wilson bulletin (Wilson Ornithological Society) (01.12.2001)

by Gerhardt, Richard P., Gerhardt, Dawn M., Vasquez, Miguel Angel
Published in The Wilson bulletin (Wilson Ornithological Society) (01.03.1997)

by Frye, Graham G, Gerhardt, Richard P
Published in The Wilson journal of ornithology (01.12.2001)

by Gerhardt, Richard P, Gerhardt, Dawn M
Published in Neotropical Birds of Prey (2017)

by Gerhardt, Richard P, Seavy, Nathaniel E, Madrid, Ricardo A
Published in Neotropical Birds of Prey (2017)

by Gerhardt, Richard P, Gerhardt, Dawn M, Vásquez, Miguel A
Published in Neotropical Birds of Prey (2017)

by Gerhardt, Richard P, Gerhardt, Dawn M, Bonilla, Normandy, Flatten, Craig J
Published in Neotropical Birds of Prey (2017)

by Gerhardt, Richard P, Gerhardt, Dawn M, Vasquez, Miguel Angel
Published in The Wilson journal of ornithology (01.03.1997)

by Gerhardt, Richard, Heldt, Hans W.
Published in Plant physiology (Bethesda) (01.07.1984)

by Gerhardt, Richard, Stitt, Mark, Heldt, Hans W.
Published in Plant physiology (Bethesda) (01.02.1987)

by Stitt, Mark, Gerhardt, Richard, Kürzel, Birgit, Heldt, Hans W.
Published in Plant physiology (Bethesda) (01.08.1983)

by Sharkey, Thomas D., Stitt, Mark, Heineke, Dieter, Gerhardt, Richard, Raschke, Klaus, Heldt, Hans W.
Published in Plant physiology (Bethesda) (01.08.1986)

by Sharkey, Thomas D., Stitt, Mark, Heineke, Dieter, Gerhardt, Richard, Raschke, Klaus, Heldt, Hans W.
Published in Plant physiology (Bethesda) (01.08.1986)

by GERHARDT RICHARD EDWARD
Year of Publication 06.08.1958