References

1. J.D.Kraus, 1966. "Radio Astronomy" p47 McGraw-Hill, NY (first edition).
2. D.A.MacRae and G.Westerhout: "Table for the reduction of velocities to the Local Standard of Rest", The Observatory, Lund, Sweden 1956. (`The Lund Tables'). Uses 20km/s toward 18h,+30d(B1900)
3. M.A.Gordon, 1976, in "Methods of Experimental Physics", vol 12-C, Chap 6.1 (Astrophysics - Radio Observations), Academic Press, NY.