TY - RPRT TI - International Space Station (ISS) Bacterial Filter Elements (BFEs): Filter Efficiency and Pressure Testing of Returned Units AU - Green, Robert D. AU - Agui, Juan H. AU - Vijayakumar, R. PY - 2017 UR - https://ntrs.nasa.gov/citations/20170005559 ID - 20170005559 ER -