1. Foetal haemorrhage into the maternal circulation;Apley, J.; Colley, P.A.N.; Fraser, I.D.;Lancet,1961
2. Studies on human foetal haemoglobin. Foetal haemoglobin levels in healthy children and adults and in certain haematological disorders;Beaven, G.H.; Ellis, M.J.; White, J.C.;Brit. J. Haemat,1960
3. The haemoglobins of the human foetus and infant. Electrophoretic and spectroscopic differentiation of adult and foetal types;Beaven, G.H.; Ellis, M.J.; White, J.C.; Hoch, H.; Holiday, E.R.;Biochem. J,1951
4. Fetaler und bleibender Blutfarbstolf in Erythrozyten und Erythroblasten von menschlichen Feten and Neugeborenen;Betke, K.; Kleihauer, E.;Blut,1958
5. Foetal-type haemoglobin in the blood of the newborn;Brody, S.;Lancet,1959