%0 Journal Article %T Realising formal groups %A N. P. Strickland %J Mathematics %D 2002 %I arXiv %R 10.2140/agt.2003.3.187 %X We show that a large class of formal groups can be realised functorially by even periodic ring spectra. The main advance is in the construction of morphisms, not of objects. %U http://arxiv.org/abs/math/0211085v2