Results of a new test of local Lorentz invariance: A search for mass anisotropy in
T. E. Chupp, R. J. Hoare, R. A. Loveman, E. R. Oteiza, J. M. Richardson, M. E. Wagshul, and A. K. Thompson
Phys. Rev. Lett. 63, 1541 (1989) - Published 9 October, 1989
Phase transitions in self-dual Ising models with multispin interactions and a field
J. R. Heringa, H. W. J. Blöte, and A. Hoogland
Phys. Rev. Lett. 63, 1546 (1989) - Published 9 October, 1989