From finitary to infinitary second-order logic. - George Weaver; Irena Penev (Math. Log. Q., 2005)

Excluding Induced Subdivisions of the Bull and Related Graphs. - Maria Chudnovsky; Irena Penev; Alex Scott 001; Nicolas Trotignon (J. Graph Theory, 2012)

Coloring Bull-Free Perfect Graphs. - Irena Penev (SIAM J. Discret. Math., 2012)

Excluding four-edge paths and their complements - Maria Chudnovsky; Peter Maceli; Irena Penev (CoRR, 2013)

Substitution and χ-boundedness. - Maria Chudnovsky; Irena Penev; Alex Scott 001; Nicolas Trotignon (J. Comb. Theory B, 2013)

The Structure of Bull-Free Perfect Graphs. - Maria Chudnovsky; Irena Penev (J. Graph Theory, 2013)

Perfect graphs of arbitrarily large clique-chromatic number. - Pierre Charbit; Irena Penev; Stéphan Thomassé; Nicolas Trotignon (J. Comb. Theory B, 2016)

Perfect Graphs with No Balanced Skew-Partition are 2-Clique-Colorable. - Irena Penev (J. Graph Theory, 2016)

Isolating Highly Connected Induced Subgraphs. - Irena Penev; Stéphan Thomassé; Nicolas Trotignon (SIAM J. Discret. Math., 2016)

Graphs with No Induced Five-Vertex Path or Antipath. - Maria Chudnovsky; Louis Esperet; Laetitia Lemoine; Peter Maceli; Frédéric Maffray; Irena Penev (J. Graph Theory, 2017)

Amalgams and χ-Boundedness. - Irena Penev (J. Graph Theory, 2017)

Stable Sets in {ISK4, wheel}-Free Graphs. - Martin Milanic; Irena Penev; Nicolas Trotignon (Algorithmica, 2018)

Clique-cutsets beyond chordal graphs. - Valerio Boncompagni; Irena Penev; Kristina Vuskovic (J. Graph Theory, 2019)

On the clique-width of (4K1, C4, C5, C7)-free graphs. - Irena Penev (Discret. Appl. Math., 2020)

The class of ( P 7 , C 4 , C 5 ) -free graphs: Decomposition, algorithms, and χ -boundedness. - Kathie Cameron; Shenwei Huang; Irena Penev; Vaidy Sivaraman (J. Graph Theory, 2020)

Coloring rings. - Frédéric Maffray; Irena Penev; Kristina Vuskovic (J. Graph Theory, 2021)

On the structure and clique-width of ( 4 K 1 , C 4 , C 6 , C 7 ) -free graphs. - Irena Penev (J. Graph Theory, 2022)

Coloring (4K1,C4,C6)-free graphs. - Irena Penev (Discret. Math., 2023)

Bisimplicial separators. - Martin Milanic; Irena Penev; Nevena Pivac; Kristina Vuskovic (J. Graph Theory, 2024)