Submillimeter water and ammonia absorption by the peculiar z ˜ 0.89 interstellar medium in the gravitational lens of the PKS 1830-211 systemv. 492EDP Sciences725–730
Menten, Karl M., Gsten, R., Leurini, S., Thorwirth, S., Henkel, C., Klein, B., Carilli, Christopher L., and Reid, Mark J. 2008. "Submillimeter water and ammonia absorption by the peculiar z ˜ 0.89 interstellar medium in the gravitational lens of the PKS 1830-211 system." Astronomy and Astrophysics, 492 725–730.