TY - JOUR AU - Hans Höngesberg TI - A fourfold refined enumeration of alternating sign trapezoids JO - The electronic journal of combinatorics PY - 2022 VL - 29 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.37236/9933/ DO - 10.37236/9933 ID - 10_37236_9933 ER -