PP-2015-09: Bezhanishvili, Nick and Sourabh, Sumit (2015) Sahlqvist preservation for topological fixed-point logic. [Report]
PP-2014-23: Bezhanishvili, Guram and Bezhanishvili, Nick and Sourabh, Sumit and Venema, Yde (2014) Subordinations, closed relations, and compact Hausdorff spaces. [Report]
DS-2015-04: Sourabh, Sumit (2015) Correspondence and Canonicity in Non-Classical Logic. Doctoral thesis, University of Amsterdam.