@unpublished{casale:hal-02747997,
TITLE = {GALOIS GROUPOID AND CONFLUENCE OF DIFFERENCE EQUATIONS},
AUTHOR = {Casale, Guy and Davy, Damien},
URL = {https://hal.science/hal-02747997},
NOTE = {working paper or preprint},
YEAR = {2020},
MONTH = Jun, PDF = {https://hal.science/hal-02747997/file/confluence.pdf},
HAL_ID = {hal-02747997},
HAL_VERSION = {v1},
}