TY - JOUR AU - CAUSEY, RYAN MICHAEL TI - CONCERNING SUMMABLE SZLENK INDEX JO - Glasgow mathematical journal PY - 2020 SP - 59 EP - 73 VL - 62 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089518000526/ DO - 10.1017/S0017089518000526 ID - 10_1017_S0017089518000526 ER -