1. Esotropia following occlusion;Swan;Arch. Ophth.,1947
2. Lectures on Motor Anomalies;Bielschowsky,1956
3. Burian, H. M.: Etiology of heterophoria and heterotropia in strabismus. In Ophthalmic Symposium (I), J. H. Allen, ed., St. Louis, Mosby, 1950.
4. Strabisme convergent concomitant aigu “type Franceschetti.”;Moutinho,1957