Reachability in Vector Addition Systems is Ackermann-complete. - Wojciech Czerwinski; Lukasz Orlikowski (FOCS, 2021)

Improved Lower Bounds for Reachability in Vector Addition Systems. - Wojciech Czerwinski; Slawomir Lasota 001; Lukasz Orlikowski (ICALP, 2021)

Lower Bounds for the Reachability Problem in Fixed Dimensional VASSes. - Wojciech Czerwinski; Lukasz Orlikowski (LICS, 2022)

New Lower Bounds for Reachability in Vector Addition Systems. - Wojciech Czerwinski; Ismaël Jecker; Slawomir Lasota 001; Jérôme Leroux; Lukasz Orlikowski (FSTTCS, 2023)

The Tractability Border of Reachability in Simple Vector Addition Systems with States. - Dmitry Chistikov 001; Wojciech Czerwinski; Filip Mazowiecki; Lukasz Orlikowski; Henry Sinclair-Banks; Karol Wegrzycki (FOCS, 2024)

Languages of Boundedly-Ambiguous Vector Addition Systems with States. - Wojciech Czerwinski; Lukasz Orlikowski (CONCUR, 2025)

Reachability in 3-VASS Is Elementary. - Wojciech Czerwinski; Ismaël Jecker; Slawomir Lasota 001; Lukasz Orlikowski (ICALP, 2025)