EFFECT OF UNIAXIAL STRESS ON THE HELIMAGNETIC-FERROMAGNETIC PHASE TRANSITION IN SINGLE-CRYSTAL DYSPROSIUM L. V. BENNINGFIELD, Jr. et P. L. DONOHO J. Phys. Colloques, 32 C1 (1971) C1-233-C1-234 DOI: 10.1051/jphyscol:1971175