Editing State-of-the-art (section)

=== Contributors ===
* Article Do, et al. (2021) 'A Systematic Review and Analysis of Multilingual Data Strategies in Text-to-Speech for Low-Resource Languages': Alice Vanni
* Article Staib et al. (2020) 'Phonological features for 0-shot multilingual speech synthesis': Wang Yinqiu
* Article Do, et al. (2023) 'Strategies in Transfer Learning for Low-Resource Speech Synthesis: Phone Mapping, Features Input, and Source Language Selection': Annie Zhou
* Article Wells D, et al. (2021) 'Richmond K. Cross-lingual transfer of phonological features for low-resource speech synthesis': Ding
* Introduction: All
* Synthesis: All