TY - JOUR TI - Trigger and aperture of the surface detector array of the Pierre Auger Observatory PY - 2010 AU - Abraham, J AU - Souza, Vitor de AU - Gouffon, Philippe AU - Tridapalli, D. B. T2 - Nuclear Instruments and Methods in Physics Research A SN - 0168-9002 DO - 10.1016/j.nima.2009.11.018 UR - https://doi.org/10.1016/j.nima.2009.11.018 PP - Amsterdam VL - 613 IS - 1 SP - 29-39 IS - Ja 2010 ER -