The following publications are possibly variants of this publication:
- Regular Expressions and Transducers over Alphabet-Invariant and User-Defined LabelsStavros Konstantinidis, Nelma Moreira, Rogério Reis, Joshua Young. wia 2018: 4-27 [doi]
- Partial derivatives of regular expressions over alphabet-invariant and user-defined labelsStavros Konstantinidis, Nelma Moreira, Rogério Reis. TCS, 870:103-120, 2021. [doi]
- Partial Derivatives of Regular Expressions over Alphabet-Invariant and User-Defined LabelsStavros Konstantinidis, Nelma Moreira, João Pires, Rogério Reis. wia 2019: 184-196 [doi]