1. Beckman , G. 1970 Genetics of human placental phosphatases Thesis Univ. of Umeå
2. A genetic variant of placental alkaline phosphatase with unusual electrophoretic properties;Beckman;Acta Genet. Statist. Med.,1968
3. Factors influencing the levels of the alkaline phosphatases in maternal serum and cord serum;Beckman;Hum. Hered.,1971
4. Serum alkaline phosphatase isoenzyme of human neoplastic cell origin;Fishman;Cancer Res.,1968a
5. Immunology and biochemistry of Regan isoenzyme of alkaline phosphatase in human cancer;Fishman;Nature,1968b