diff --git a/dantechumanoid22.md b/dantechumanoid22.md
index 333079b24464e15769b6c86031660d220c4ae6d3..a87035dbd475647c229c8bc50ce32cc0692a496b 100644
--- a/dantechumanoid22.md
+++ b/dantechumanoid22.md
@@ -14,6 +14,7 @@ org:
 - ^1^ LAAS-CNRS, Université de Toulouse
 - ^2^ Artificial and Natural Intelligence Toulouse Institute, Toulouse
 - ^3^ TOWARD, Toulouse, France
+hal: https://hal.archives-ouvertes.fr/hal-03724019
 peertube: https://peertube.laas.fr/videos/embed/caf150bf-878b-40d9-88db-710b71730f9f
 data: https://gepettoweb.laas.fr/data/wbwalk/
 ...