About antiferromagnetic Heisenberg models / Paul Louis IskeOn the properties of two-dimensional antiferromagnetic Heisenberg systems / George Ivan TielenRelaxation and decoherence in quantum spin system / Shengjun YuanRelaxation and decoherence in quantum spin system / Shengjun YuanOnderzoekingen op het gebied van magnetische lagenstructuren : Heisenberg-ferromagnetische soortelijke warmte : Heisenberg-antiferromagnetische subroostermagnetisatie : beschrijving van de dipool-dipoolinteractie / Jacobus Hendrik Pieter ColpaProton relaxation and the dynamics of the S=1/2 antiferromagnetic Heisenberg chain / Johannes Petrus GroenOn the static and dynamic properties of impure two-dimensional antiferromagnets / Huig van der VlistGround-state properties of antiferromagnetic Heisenberg systems / Willem-Jan van den BroekStatic and dynamic behaviour of a quasi 1-D Heisenberg antiferromagnet in the long-range ordered state : a nuclear magnetic resonance study performed with a 3He-4He dilution refrigerator / Johannes Cornelis Voorhoeve