---Astroph. J. 460, 716 Abs.
WSRT and VLA Observations of the 6 Centimeter and 2 Centimeter LInes of H 2CO in the Direction of W3
/ Dickel, H. R., Goss, W. M., & Condon, G. R. - ( 27 / 10)
---Astron. Astroph. 303, 901 Abs.
The W 3 core: masses, densities, sizes and kinematics.
/ Tieftrunk, A. R., Wilson, T. L., Steppe, H., Gaume, R. A., Johnston, K. J., & Claussen, M. J. - ( 31 / 10)
---Astroph. J. 454, 831 Abs.
High-Resolution Far-Infrared Observations and Radiative-Transfer Models of W3 IRS 4 and IRS 5
/ Campbell, M. F., Butner, H. M., Harvey, P. M., Evans, N. J., I., Campbell, M. B., & Sabbey, C. N. - ( 43 / 8)
---Astron. Astroph. 307, 775 Abs.
A dense stellar cluster surrounding W3 IRS 5.
/ Megeath, S. T., Herter, T., Beichman, C., Gautier, N., Hester, J. J., Rayner, J., & Shupe, D. - ( 38 / 7)
---Astroph. J. 471, 871 Abs.
Helium Enrichment and Carbon Ionization in the W3 Core
/ Adler, D. S., Wood, D. O. S., & Goss, W. M. - ( 19 / 6)
---Astron. Astroph. 310, 315 Abs.
The ionization fraction in dense clouds.
/ De Boisanger, C., Helmich, F. P., & Van Dishoeck, E. F. - ( 41 / 3)
---astro-ph/9511091 Abs.
The Ionization Fraction in Dense Clouds
/ C.B. de Boisanger, F.P. Helmich, E.F. van Dishoeck - ( 44/ 3)