A KOSMA 7 deg
CO 2–1 and 
CO 3–2 survey of the Perseus cloud - I. Structure analysis
A&A, 451 2 (2006) 539-549
DOI: https://doi.org/10.1051/0004-6361:20054256
CO 2–1 and CO 3–2 survey of the Perseus cloud - I. Structure analysis