TY - JOUR AU - Tristan Rivière TI - Exploring the unknown: The work of Louis Nirenberg on partial differential equations JO - EMS surveys in mathematical sciences PY - 2022 SP - 1 EP - 29 VL - 9 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4171/emss/52/ DO - 10.4171/emss/52 ID - 10_4171_emss_52 ER -