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