FIR ABSORPTION SPECTRA OF LINEAR CHAIN ISING ANTIFERROMAGNET CsCoCl3 H. Ohta, K. Fukuda, N. Kitamura et M. Motokawa J. Phys. Colloques, 49 C8 (1988) C8-1457-C8-1458 DOI: 10.1051/jphyscol:19888669