1. Beutler, E., Kuhl, W.: Purification and properties of human ?-galactosidases. J. Biol. Chem. 247, 7195?7200 (1972a)
2. Beutler, E., Kuhl, W.: Relationship between human ?-galactosidase isoenzymes. Nature New Biol. 239, 207?208 (1972b)
3. Beutler, E., Guinto, E., Kuhl, W.: Variability of ?-galactosidase A and B in different tissues of man. Am. J. Hum. Genet. 25, 42?46 (1973)
4. Bobrow, M., Madan, K., Pearson, P. L.: Staining of some specific regions of human chromosomes, praticularly the secondary constriction of No. 9. Nature New Biol. 238, 122?124 (1972)
5. Bruns, G. A. P., Leary, A. C., Regina, V. M., Gerald, P. S.: Lysosomal ?-D-galactosidase in man-hamster somatic cell hybrids. In: Fourth International Workshop on Human Gene Mapping, Winnipeg Conference, 1977. New York: The National Foundation (in press, 1978)