TY - JOUR AU - Nguyen Le Chi Quyet TI - Some extension groups between exponential functors JO - Comptes Rendus. Mathématique PY - 2019 SP - 693 EP - 696 VL - 357 IS - 9 PB - Elsevier DO - 10.1016/j.crma.2019.09.005 LA - en ID - CRMATH_2019__357_9_693_0 ER -