Search for starless clumps in the ATLASGAL survey J. Tackenberg, H. Beuther, T. Henning, F. Schuller, M. Wienen, F. Motte, F. Wyrowski, S. Bontemps, L. Bronfman, K. Menten et al. (2 more) A&A, 540 (2012) A113 Published online: 06 April 2012 DOI: 10.1051/0004-6361/201117412