Quelo: an Ontology-Driven Query Interface. - Enrico Franconi; Paolo Guagliardo; Marco Trevisan; Sergio Tessaris (Description Logics, 2011)

A Constructive Framework for View Updating (Extended Abstract). - Enrico Franconi; Paolo Guagliardo (SEBD, 2011)

On the Translatability of View Updates. - Enrico Franconi; Paolo Guagliardo (AMW, 2012)

The View Update Problem Revisited - Enrico Franconi; Paolo Guagliardo (CoRR, 2012)

Effectively Updatable Conjunctive Views. - Enrico Franconi; Paolo Guagliardo (AMW, 2013)

Enhancing the Updatability of Projective Views. - Paolo Guagliardo; Reinhard Pichler; Emanuel Sallinger (AMW, 2013)

Lossless Horizontal Decomposition with Domain Constraints on Interpreted Attributes. - Ingo Feinerer; Enrico Franconi; Paolo Guagliardo (BNCOD, 2013)

Query Processing in Data Integration. - Paolo Guagliardo; Piotr Wieczorek (Data Exchange, Information, and Streams, 2013)

Lossless Selection Views under Constraints. - Ingo Feinerer; Paolo Guagliardo; Enrico Franconi (AMW, 2014)

Translatable Updates of Selection Views under Constant Complement. - Enrico Franconi; Paolo Guagliardo (DEXA (2), 2014)

Lossless Selection Views under Conditional Domain Constraints. - Ingo Feinerer; Enrico Franconi; Paolo Guagliardo (IEEE Trans. Knowl. Data Eng., 2015)

Approximations and Refinements of Certain Answers via Many-Valued Logics. - Marco Console; Paolo Guagliardo; Leonid Libkin (KR, 2016)

Making SQL Queries Correct on Incomplete Databases: A Feasibility Study. - Paolo Guagliardo; Leonid Libkin (PODS, 2016)

On Querying Incomplete Information in Databases under Bag Semantics. - Marco Console; Paolo Guagliardo; Leonid Libkin (IJCAI, 2017)

A Formal Semantics of SQL Queries, Its Validation, and Applications. - Paolo Guagliardo; Leonid Libkin (Proc. VLDB Endow., 2017)

Correctness of SQL Queries on Databases with Nulls. - Paolo Guagliardo; Leonid Libkin (SIGMOD Rec., 2017)

How Standard is the SQL Standard? - Paolo Guagliardo; Leonid Libkin (AMW, 2018)

Cypher: An Evolving Query Language for Property Graphs. - Nadime Francis; Alastair Green; Paolo Guagliardo; Leonid Libkin; Tobias Lindaaker; Victor Marsault; Stefan Plantikow; Mats Rydberg; Petra Selmer; Andrés Taylor (SIGMOD Conference, 2018)

Formal Semantics of the Language Cypher. - Nadime Francis; Alastair Green; Paolo Guagliardo; Leonid Libkin; Tobias Lindaaker; Victor Marsault; Stefan Plantikow; Mats Rydberg; Martin Schuster; Petra Selmer; Andrés Taylor (CoRR, 2018)

Do We Need Many-valued Logics for Incomplete Information?. - Marco Console; Paolo Guagliardo; Leonid Libkin (IJCAI, 2019)

On the Codd semantics of SQL nulls. - Paolo Guagliardo; Leonid Libkin (Inf. Syst., 2019)

Updating Graph Databases with Cypher. - Alastair Green; Paolo Guagliardo; Leonid Libkin; Tobias Lindaaker; Victor Marsault; Stefan Plantikow; Martin Schuster; Petra Selmer; Hannes Voigt (Proc. VLDB Endow., 2019)

Knowledge-Preserving Certain Answers for SQL-like Queries. - Etienne Toussaint; Paolo Guagliardo; Leonid Libkin (KR, 2020)

Coping with Incomplete Data: Recent Advances. - Marco Console; Paolo Guagliardo; Leonid Libkin; Etienne Toussaint (PODS, 2020)

Propositional and predicate logics of incomplete information. - Marco Console; Paolo Guagliardo; Leonid Libkin (Artif. Intell., 2022)

Fragments of bag relational algebra: Expressiveness and certain answers. - Marco Console; Paolo Guagliardo; Leonid Libkin (Inf. Syst., 2022)

Troubles with Nulls, Views from the Users. - Etienne Toussaint; Paolo Guagliardo; Leonid Libkin; Juan Sequeda (Proc. VLDB Endow., 2022)

A Researcher's Digest of GQL (Invited Talk). - Nadime Francis; Amélie Gheerbrant; Paolo Guagliardo; Leonid Libkin; Victor Marsault; Wim Martens; Filip Murlak; Liat Peterfreund; Alexandra Rogova; Domagoj Vrgoc (ICDT, 2023)

GPC: A Pattern Calculus for Property Graphs. - Nadime Francis; Amélie Gheerbrant; Paolo Guagliardo; Leonid Libkin; Victor Marsault; Wim Martens; Filip Murlak; Liat Peterfreund; Alexandra Rogova; Domagoj Vrgoc (PODS, 2023)

Queries with External Predicates. - Paolo Guagliardo; Leonid Libkin; Victor Marsault; Wim Martens; Filip Murlak; Liat Peterfreund; Cristina Sirangelo (ICDT, 2025)

Rel: A Programming Language for Relational Data. - Molham Aref; Paolo Guagliardo; George Kastrinis; Leonid Libkin; Victor Marsault; Wim Martens; Mary McGrath; Filip Murlak; Nathaniel Nystrom; Liat Peterfreund; Allison Rogers; Cristina Sirangelo; et al. (SIGMOD Conference Companion, 2025)