@unpublished{guirardel:hal-02909586,
TITLE = {Towers and the first-order theory of hyperbolic groups},
AUTHOR = {Guirardel, Vincent and Levitt, Gilbert and Sklinos, Rizos},
URL = {https://hal.science/hal-02909586},
NOTE = {working paper or preprint},
YEAR = {2020},
MONTH = Jul, HAL_ID = {hal-02909586},
HAL_VERSION = {v1},
}