TY - JOUR AU - Mi-Mi Zhang AU - Jin-Xin Zhou TI - Trivalent dihedrants and bi-dihedrants JO - Ars Mathematica Contemporanea PY - 2021 VL - 21 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.2373.c02/ DO - 10.26493/1855-3974.2373.c02 LA - en ID - 10_26493_1855_3974_2373_c02 ER -