TY - JOUR AU - Jasna Prezelj AU - Fabio Vlacci TI - Divergence zero quaternionic vector fields and Hamming graphs JO - Ars Mathematica Contemporanea PY - 2020 SP - 189 EP - 208 VL - 19 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.2033.974/ DO - 10.26493/1855-3974.2033.974 LA - en ID - 10_26493_1855_3974_2033_974 ER -