DCO+ and DCN 1–0 survey toward a sample of Planck cold clumps Fu Mo, Junzhi Wang, Shu Liu, Yan Duan, Huanxue Feng, Yuqiang Li, Zhe Lu, Rui Luo, Chao Ou, Yani Xu and Zhuoying Yan A&A, 696 (2025) A140 Published online: 11 April 2025 DOI: 10.1051/0004-6361/202452072