TY - JOUR AU - TIMOTHY C. BURNESS AU - DONNA M. TESTERMAN TI - $A_{1}$-TYPE SUBGROUPS CONTAINING REGULAR UNIPOTENT ELEMENTS JO - Forum of Mathematics, Sigma PY - 2019 VL - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1017/fms.2019.12/ DO - 10.1017/fms.2019.12 LA - en ID - 10_1017_fms_2019_12 ER -