Jacobs, D. E., Hutchinson, M. J., Stanneck, D., & Mencke, N. Accumulation and persistence of flea larvicidal activity in the immediate environment of cats treated with imidacloprid. MEDICAL AND VETERINARY ENTOMOLOGY, 15(3), 242-245. https://doi.org/10.1046/j.0269-283x.2001.00320.x