1. Estrogene beim menschen;Diczfalusy,1961
2. Urinary excretion of estriol and pregnanediol during normal pregnancy;Klopper;J. Obst. Gynaec. Brit. Comm.,1963
3. Estrogen assays in clinical medicine, basis and methodology;Paulsen,1965
4. Foetus and placenta;Klopper,1969
5. Estriol assay in obstetric practice;Bjoro;Acta Endo.,1972