1. Post KD, Jackson IMD, Reichlin S (eds):The Pituitary Adenoma, New York/London, Plenum Medical Book Company, 1980, pp 109–118.
2. Landolt AM:Ultrastructure of human sellar tumors. Correlations of clinical findings and morphology. Acta Neurochir (Suppl 22 ):1–167, 1975.
3. Kovacs K, Hovrath E, Ezrin E:Pituitary adenomas. Pathol Annu 2:341–382, 1977.
4. Kovacs K, Horvath E; Ryan N, Ezrin C:Null cell adenoma of the human pituitary. Virchows Arch A Path Anat Histol 387:165–174, 1980.
5. Wilson CB:Neurosurgical management of large and invasive pituitary tumors. In:Clinical management of pituitary disorders, Tindali GT, Collins WF (eds), New York, Raven Press, 1979, pp 335–342.