A CO survey on a sample of Herschel cold clumps O. Fehér, M. Juvela, T. Lunttila, J. Montillaud, I. Ristorcelli, S. Zahorecz and L. V. Tóth A&A, 606 (2017) A102 Published online: 20 October 2017 DOI: 10.1051/0004-6361/201629866