LOW TEMPERATURE MAGNETIC SUSCEPTIBILITY OF [(CH3)3NH] 3Cu2Cl7 A ONE DIMENSIONAL S = 1/2 FERROMAGNET C.P. Landee et R.D. Willett J. Phys. Colloques, 39 C6 (1978) C6-741-C6-742 DOI: 10.1051/jphyscol:19786330