Spatially anisotropic S = 1 square-lattice antiferromagnet with single-ion anisotropy realized in a Ni(II) pyrazine-n, n'-dioxide coordination polymer by Manson, JL, Pajerowski, DM, Donovan, JM, Twamley, B, Goddard, PA, Johnson, R, Bendix, J, Singleton, J, Lancaster, T, Blundell, SJ, Herbrych, J, Baker, PJ, Steele, AJ, Pratt, FL, Franke-Chaudet, I, McDonald, RD, Plonczak, A, Manuel, P