1. Bertrams J, Müller B, Luboldt W (1988) Haptoglobin (Hp) subtypes in the German Rhine-Ruhr area. In: Advances in Forensic Haemogenetics 2, Springer-Verlag, Berlin, pp 158–162
2. Heredero L, Granda H, Suarez Aguiar JA, Altland K (1974) An economic high speed electrophoretic screening system for hemoglobin S and other proteins. Humangenetik 21: 167–177
3. Hjalmarsson K (1988) The distribution of Hp Subtypes in Sweden. In: Advances in Forensic Haemogenetics 2, Springer-Verlag, Berlin, pp 179–183
4. Olaisen B, Mevag B, Teisberg P, Gedde-Dahl T, Heiland R, Siverts A, Jonassen R, Hjalmarsson K, Swan T (1981) Plasma protein polymorphisms in two- dimensional electrofocusing/SDS electrophoresis. In proceedings 9 Intern. Congress Soc. Forens. Haemogenetics, Bern, pp 543–548
5. Patzelt D, Geserick G, Schröder H (1988) The genetic haptoglobin polymorphism: Relevance of paternity assessment. Electrophoresis 9: 393–397