Haworth, Claire M A; Harlaar, Nicole; Kovas, Yulia; Davis, Oliver S P; Oliver, Bonamy R; Hayiou-Thomas, Marianna E; Frances, Jane; Busfield, Patricia; McMillan, Andrew; Dale, Philip S and Plomin, Robert. 2007. Internet cognitive testing of large samples needed in genetic research. Twin research and human genetics, 10(4), pp. 554-63. ISSN 1832-4274 [Article]

Hayiou-Thomas, Marianna E; Oliver, Bonamy R and Plomin, Robert. 2005. Genetic influences on specific versus nonspecific language impairment in 4-year-old twins. Journal of Learning Disabilities, 38(3), pp. 222-232. ISSN 0022-2194 [Article]