1. Zyklusstörungen durch Ultraschall;Alberts;Geburtsh Frauenheilkd,1951
2. Focal diagnosis in gynecological radiotherapy;Alth;Strahlentherapie,1971
3. Cyclic variations in ultrasonographic evaluation of the female pelvis;Anderson,1978
4. Echographic diagnosis of retroperitoneal lymph node enlargement;Asher;Am J Roentgenol,1969
5. Ultrasonography in obstetrics and gynecology: Historical notes, basis principles, safety considerations and clinical applications;Azimi;CRC Crit Rev Clin Radiol Nuclear Med,1976