TY - JOUR AU - Paul M. Rakoyomamonjy AU - Sandrataniaina R. Andriantsoa TI - Crossings and nestings over some Motzkin objects and \(q\)-Motzkin numbers JO - The electronic journal of combinatorics PY - 2021 VL - 28 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.37236/10102/ DO - 10.37236/10102 ID - 10_37236_10102 ER -