INSTABILITIES OF CLOCK SPIN-GLASSES IN A MAGNETIC-FIELD by Nobre, F, Sherrington, D

REPLICA-SYMMETRY BREAKING FOR THE ASHKIN-TELLER SPIN-GLASS by Nobre, F, Sherrington, D

THE INFINITE-RANGE CLOCK SPIN-GLASS MODEL - AN INVESTIGATION OF THE RELEVANCE OF REFLECTION SYMMETRY by Nobre, F, Sherrington, D

SPONTANEOUSLY ANISOTROPIC SPIN-GLASS ORDER - THE 4-STATE CLOCK AND XY MODELS by Nobre, F, Sherrington, D, Young, A