Jokipii, Lerche & Schommer (1969) – Interstellar Polarization of Starlight and the Turbulent Structure of the Galaxy
Marrese et al. (2018) – Gaia Data Release 2. Cross-match with external catalogues – Algorithms and results
Heiles & Troland (2003) – The Millennium Arecibo 21 Centimeter Absorption-Line Survey. II. Properties of the Warm and Cold Neutral Media
Stanimirovic et al. (2010) – Arecibo Multi-epoch H I Absorption Measurements Against Pulsars: Tiny-scale Atomic Structure
Chengalur, Kanekar & Roy (2013) – Accurate measurement of the H I column density from H I 21 cm absorption-emission spectroscopy
Roy et al. (2013) – The temperature of the diffuse H I in the Milky Way – I. High resolution H I-21 cm absorption studies
Mohan, Dwarakanath & Srinivasan (2004) – A High Galactic Latitude HI 21cm-line Absorption Survey using the GMRT: I. Observations and Spectra
Mohan, Dwarakanath & Srinivasan (2004) – A High Galactic Latitude HI 21cm-line Absorption Survey using the GMRT: II. Results and Interpretation
van de Hulst, Muller & Oort (1954) – The spiral structure of the outer part of the Galactic System derived from the hydrogen emission at 21 cm wavelength