Methyl cyanide as tracer of bow shocks in L1157-B1C. Codella, M. Benedettini, M. T. Beltrán, F. Gueth, S. Viti, R. Bachiller, M. Tafalla, S. Cabrit, A. Fuente and B. LeflochA&A, 507 2 (2009) L25-L28DOI: https://doi.org/10.1051/0004-6361/200913340
