Who is calling: proof of concept for the use of laser Doppler vibrometry in identifying individual callers within African elephant vocalization boutsCaitlin E. O’Connell-Rodwell, Jodie L. Berezin, Kilian Shambaugh and Ed StewartEur. Phys. J. Spec. Top., 232 2 (2023) 253-259DOI: https://doi.org/10.1140/epjs/s11734-022-00704-5