COOPERATIVE OPTICAL PHENOMENA AT 0,3 KELVIN J.R.G. Thorne, S.T. Bramwell, P. Day, R.G. Denning et A.C. James J. Phys. Colloques, 46 C7 (1985) C7-561-C7-565 DOI: 10.1051/jphyscol:19857100
