"Research Faculty at Pymatuning". University of Pittsburgh Department of Biological Sciences. Archived from the original on May 10, 2009. Retrieved May 14, 2009.
"Courses at PLE: Instructors". University of Pittsburgh Department of Biological Sciences. Archived from the original on May 10, 2009. Retrieved May 14, 2009.
Relyea, Rick (September 2012). "New Lab for PLE! NSF Grant Awarded"(PDF). University of Pittsburgh. Archived(PDF) from the original on May 22, 2022. Retrieved December 4, 2012.
"Research Faculty at Pymatuning". University of Pittsburgh Department of Biological Sciences. Archived from the original on May 10, 2009. Retrieved May 14, 2009.
"Courses at PLE: Instructors". University of Pittsburgh Department of Biological Sciences. Archived from the original on May 10, 2009. Retrieved May 14, 2009.
Relyea, Rick (September 2012). "New Lab for PLE! NSF Grant Awarded"(PDF). University of Pittsburgh. Archived(PDF) from the original on May 22, 2022. Retrieved December 4, 2012.