Tucker, Marlee A., and Tracey L. Rogers. “Examining Predator–Prey Body Size, Trophic Level and Body Mass across Marine and Terrestrial Mammals.” Proceedings of the Royal Society B: Biological Sciences 281, no. 1797 (December 22, 2014). [Source]
Sanders, Dirk, Andrea Moser, Jason Newton, and F. J. Frank van Veen. “Trophic Assimilation Efficiency Markedly Increases at Higher Trophic Levels in Four-Level Host–Parasitoid Food Chain.” Proceedings of the Royal Society B: Biological Sciences 283, no. 1826 (March 16, 2016). [Source]