Buch, F., Rott, M., Rottloff, S., Paetz, C., Hilke, I., Raessler, M., et al. (2013). Secreted pitfall-trap fluid of carnivorous Nepenthes plants is unsuitable for microbial growth. Annals of Botany, 111(3), 375-383. doi:10.1093/aob/mcs287.