TY - RPRT TI - Magnetic susceptibility and exchange coupling in the mineral ardennite AU - A. N. Thorpe AU - F. E. Senftle AU - G. Donnay PY - 1969 DO - 10.1016/0022-3697(69)90149-8 UR - https://pubs.usgs.gov/publication/70009828 ID - 70009828 ER -