EXPERIMENTS IN 3He-4He LIQUID MIXTURES NEAR THE TRICRITICAL POINT J. del Cueto, R.L. Johnson, T. Rohde, F.H. Wirth et E.H. Graf J. Phys. Colloques, 41 C7 (1980) C7-133-C7-136 DOI: 10.1051/jphyscol:1980721