Ripperger, Simon, Josic, Darija, Hierold, Martin, Koelpin, Alexander, Weigel, Robert, Hartmann, Markus, Page, Rachel, and Mayer, Frieder. 2016. "Automated proximity sensing in small vertebrates: design of miniaturized sensor nodes and first field tests in bats." Ecology and Evolution, 6, (7) 2179–2189. https://doi.org/10.1002/ece3.2040.