TY - JOUR AU - Neil Zimmerman AU - William Huber C2 - Physical Review Letters DA - 2009-11-03 DO - https://doi.org/10.1103/PhysRevB.80.195304 LA - en PB - Physical Review Letters PY - 2009 TI - A Microscope of Glassy Relaxation in Femtogram Samples: Charge Offset Drift in the Single Electron Transistor ER -