Open source computer algebra systems: SymPy. - David Joyner; Ondrej Certík; Aaron Meurer; Brian E. Granger (ACM Commun. Comput. Algebra, 2011)

Three anisotropic benchmark problems for adaptive finite element methods. - Pavel Solín; Ondrej Certík; Lukas Korous (Appl. Math. Comput., 2013)

dftatom: A robust and general Schrödinger and Dirac solver for atomic structure calculations. - Ondrej Certík; John E. Pask; Jirí Vackár (Comput. Phys. Commun., 2013)

SymPy: Symbolic computing in Python. - Aaron Meurer; Christopher P. Smith; Mateusz Paprocki; Ondrej Certík; Matthew Rocklin; Amit Kumar; Sergiu Ivanov 001; Jason Keith Moore; Sartaj Singh; Thilina Rathnayake; Sean Vig; Brian E. Granger; et al. (PeerJ Prepr., 2016)

SymPy: symbolic computing in Python. - Aaron Meurer; Christopher P. Smith; Mateusz Paprocki; Ondrej Certík; Sergey B. Kirpichev; Matthew Rocklin; Amit Kumar; Sergiu Ivanov 001; Jason Keith Moore; Sartaj Singh; Thilina Rathnayake; Sean Vig; et al. (PeerJ Comput. Sci., 2017)

Improving Fortran Performance Portability. - Jacob Marks; Eric Medwedeff; Ondrej Certík; Robert Bird; Robert W. Robey (LCPC, 2020)

The p- and hp-versions of the virtual element method for elliptic eigenvalue problems. - Ondrej Certík; Francesca Gardini; Gianmarco Manzini; Lorenzo Mascotto; Giuseppe Vacca (Comput. Math. Appl., 2020)

Toward Modern Fortran Tooling and a Thriving Developer Community. - Milan Curcic; Ondrej Certík; Brad Richardson; Sebastian Ehlert; Laurence Kedward; Arjen Markus; Ivan Pribec; Jérémie Vandenplas (CoRR, 2021)

The State of Fortran. - Laurence J. Kedward; Bálint Aradi; Ondrej Certík; Milan Curcic; Sebastian Ehlert; Philipp Engel; Rohit Goswami; Michael Hirsch 004; Asdrubal Lozada-Blanco; Vincent Magnin; Arjen Markus; Emanuele Pagone; et al. (Comput. Sci. Eng., 2022)

High-order finite element method for atomic structure calculations. - Ondrej Certík; John E. Pask; Isuru Fernando; Rohit Goswami; N. Sukumar; Lee A. Collins; Gianmarco Manzini; Jirí Vackár (Comput. Phys. Commun., 2024)

The Partition of Unity Finite Element Method for the Schrödinger Equation. - Daniele Boffi; Ondrej Certík; Francesca Gardini; Gianmarco Manzini (Comput. Methods Appl. Math., 2025)