PT Unknown AU Unger, M AU NA61/SHINE Collaboration TI Hadroproduction measurements with NA61/SHINE for the understanding of extensive air showers SE 32nd Internat. Cosmic Ray Conf., Beijing, China, August 11-18, 2011. Vol.5 PY 2012 BP 67 EP 70 DI 10.7529/ICRC2011/V05/1094 LA english ER