TY - JOUR AU - W Mumme AU - Ian Grey AU - Robert Roth AU - Terrell Vanderah C2 - Journal of Solid State Chemistry DA - 2007-09-01 00:09:00 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 Ba0.93Nb2.03O6 UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=854383 ER -