Erratum: Submillimeter lines from circumstellar disks around pre-main sequence stars
Leiden Observatory, PO Box 9513, 2300 RA Leiden, The Netherlands
2 Division of Geological and Planetary Sciences, California Institute of Technology, MS 150-21, Pasadena, CA 91125, USA
On page 569, Col. 2, the first sentence of the last paragraph has been misprinte d. It should read: The density is best probed by molecules with a large dipole moment such as HCO+ and HCN.
© ESO, 2001