TY - GEN AU - Alan Mighell C2 - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD DA - 2004-11-03 LA - en M1 - 109 PB - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD PY - 2004 TI - Ambiguities in Powder Pattern Indexing: A Ternary Lattice Matric Singularity ER -