P. Christ, W. Biberacher, W. Bensch, H. Muller, K. Andres: Torque measurements on alpha-(BEDT-TTF)(2)MHg(SCN)(4). 1997Synthetic Metals: 86. ISBN 0379-6779 http://dx.doi.org/10.1016/S0379-6779(97)81025-9