13C-Ethane in the Atmospheres of Jupiter and Saturn

13CI in high-mass star-forming clouds

13CO (J = 1 -- 0) Survey of Molecular Clouds toward the Monoceros and Canis Major Region

13CO (J= 1--0) Observations of the Lupus Molecular Clouds

13CO 1-0 imaging of the Medusa merger, NGC 4194. Large scale variations in molecular cloud properties

13CO 1-0 imaging of the Medusa merger, NGC4194

13CO and 12CO J=2-1 Observations Towards the Compact HII Region S252A

13CO and C 18O Maps of N-Body Magnetohydrodynamic Simulations of Dark Clouds

13CO and C18O Observations of the SgrB2 Molecular Cloud II. Molecular and Dynamical Masses of the Complex

13CO as a Tracer of Molecular Column Density in Dark Clouds

13CO at the centre of M82

13CO Bell Laboratories Survey: 13CO Column Density Distribution of the First Quadrant of the Galactic Plane

13CO Emission in the Nuclei and Disks of Late-Type Spiral Galaxies

13CO Molecular Clouds and Clumps in the Galactic Plane

13CO Observations of 17 Small Dark Clouds

13CO Observations of CMa OB1/RA Region

13CO Self-Absorption In the p Ophiuchus Dark Cloud

13CO(1-0) and 12CO(2-1) in the center of the barred galaxy NGC 1530

13CO(J=1-0) Depression in Luminous Starburst Mergers, Revisited

13CO(J=1-0) On-the-fly Mapping of the Giant HII Region NGC 604: Variation in Molecular Gas Density and Temperature due to Sequential Star Formation