Complement to II/226
1 Meaning of Reference Block 0000000000000000100001
- van Smith in Mathewson et al. (Cat. II/34)
(1956ApJ...124...43V)
- Mathewson et al. (Cat. II/34), excluding references
Appenzeller, Behr, Hall, Hiltner, Klare/Neckel, Krautter, Mathewson/Ford, Schmidt, van Smith