Severus Sebokht on Logic: H. Hugonnard-Roche, "Questions de logique au VIIe siècle Les épîtres syriaques de Sévère Sebokht et leurs sources grecques", Studia graeco-arabica 5(2015):53ff., cited by page and line of the edition. URL: https://learningroads.cfs.unipi.it/wp-content/uploads/2015/10/4-SGA_V_2015_Hugonnard-Roche.pdf