TY - JOUR AU - Yongli Zhang AU - Shenglin Zhou TI - Flag-transitive non-symmetric 2-designs with \((r, \lambda)=1\) and exceptional groups of Lie type JO - The electronic journal of combinatorics PY - 2020 VL - 27 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.37236/8832/ DO - 10.37236/8832 ID - 10_37236_8832 ER -