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3. Andresen, E. 1981. Evidence for a five-locus linkage group involving direct and associative interactions with the A-0 blood group locus in pigs. In “Papers dedicated to Professor Johannes Moustgaard on the occasion of his seventieth birthday” (Ed. E. Brummerstedt). (The Royal Danish Agricultural Society, Copenhagen), pp. 208–212.
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5. Andresen, E. and Jensen, P. 1977. Close linkage established between the HAL locus for halothane sensitivity and the PHI (phosphohexose isome-rase) locus in pigs of the Danish Landrace breed. Nord. Vet.-Med., 30, 37–38.