TY - GEN AU - John A Simmons AU - R De Wit AU - R Bullough C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1970-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.317v2 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1970 TI - Fundamental aspects of dislocation theory: ER -