Trauth, Stanley E. and Neal, Robert G.
"Geographic Range Expansion and Feeding Response by the Leech Macrobdella diplotertia (Annelida: Hirudinea) to Wood Frog and Spotted Salamander Egg Masses,"
Journal of the Arkansas Academy of Science: Vol. 58
, Article 26.
Available at: http://scholarworks.uark.edu/jaas/vol58/iss1/26