by Aitken, Michael D., Walters, Glenn W., Crunk, Phillip L., Willis, John L., Farrell, Joseph B., Schafer, Perry L., Arnett, Cliff, Turner, Billy G.
Published in Water environment research (01.11.2005)

by Schafer, Perry L., Farrell, Joseph B., Newman, Gary, Vandenburgh, Scott
Published in Water Environment & Technology (01.05.2003)

by Schafer, Perry L., Farrell, Joseph B.
Published in Water environment & technology (01.11.2000)

by Witzgall, Robert A., Schafer, Perry L., Haug, Roger T., Mundine, Joseph, Kido, Wendell H., Mulkerin, Michael, Palsenbarg, Rudy, Hystad, Brian
Published in Water Environment & Technology (01.08.2004)

by Heckman, Earl L., Schafer, Perry L., Wolstenholme, Philip, Pustorino, Richard E., Varma, Ashok
Published in Pumping Station Design (2008)

by Sanks PE, Robert L, Jones PE DEE, Garr M
Published in Pumping Station Design (2008)

by HULL, III DANIEL T, UHTE WARREN R, ARNETT CLIFFORD J, SCHAFER PERRY L, TURNER BILLY G, FARRELL JOSEPH B, KRUGEL STEVEN J, WILLIS JOHN L
Year of Publication 21.06.2005

by Arnett, Clifford J, Farrell, Joseph B, Hull, III, Daniel T, Krugel, Steven J, Schafer, Perry L, Turner, Billy G, Uhte, Warren R, Willis, John L
Year of Publication 21.06.2005

by UHTE WARREN R, ARNETT CLIFFORD J, SCHAFER PERRY L, TURNER BILLY G, FARRELL JOSEPH B, KRUGEL STEVEN J, HULL DANIEL T, WILLIS JOHN L
Year of Publication 22.01.2004

by SCHAFER, Perry L, FARRELL, Joseph B, NEWMAN, Gary, VANDENBURGH, Scott
Published in Water environment & technology (2003)