Ajay Shankar Sebastian G. Elbaum Carrick Detweiler In-Air Exchange of Small Payloads Between Multirotor Aerial Systems. 511-523 2018 ISER https://doi.org/10.1007/978-3-030-33950-0_44 conf/iser/2018 db/conf/iser/iser2018.html#ShankarED18