1. The so-called “fadenoperation”;Cüppers,1975
2. Indications of the posterior fixation operation in strabismus;Von Noorden;Ophthalmology,1978
3. Posterior fixation sutures : a revised mechanical explanation for the fadenoperation based on rectus extraocular muscle pulleys;Clark;Am J Ophthalmol,1999
4. Improved efficiency of posterior strapping when placed at the exact position of medial rectus pulley in purely tonic esotropias;Thouvenin,2010
5. Fadenoperation nach Cüppers bei komplizierten Augenmuskelstörung und nichtakkomodati. vem Konvergensexzess;Decker,1975