Forsyth, Ewan, Paterson, Daniel A., Cruickshank, Ewan, Strachan, Grant J., Gorecka, Ewa, Walker, Rebecca, Storey, John M.D., Imrie, Corrie T., "Liquid crystal dimers and the twist-bend nematic phase: on the role of spacers and terminal alkyl chains.", Journal of Molecular Liquids, 2020