- Accuracy in Spoken Learner English at B2 and C1 Levels2019 | Filozofická fakulta
- Expanding LINDSEI to spoken learner English from several L1s across CEFR levels2021 | Filozofická fakulta
- Assessing Spoken Learner Corpus Data Using the CEFR Scales and Error Rates2018 | Filozofická fakulta
- Persistent errors in spoken English among Taiwanese and Czech learners at CEFR B2 and C12022 | Filozofická fakulta