TY - JOUR AU - W Mumme AU - I Grey AU - Robert Roth AU - Terrell Vanderah C2 - Journal of Solid State Chemistry DA - 2007-03-22 00:03:00 LA - en M1 - 180 PB - Journal of Solid State Chemistry PY - 2007 TI - Contrasting Oxide Crystal Chemistry of Nb and Ta. The Structures of the Hexagonal Bronzes BaTa2O6 and Ba0.93Nb2.03^O6 ER -