1. E. Antonello and M. Fracassini, “Pulsars and interstellar medium: multiple regression analysis of related parameters”, Astrophysics and Space Science, 108, 187–193, 1985.
2. R.L. Branham Jr., “Alternatives to least-squares”, The Astronomical Journal, 87, 928–937, 1982.
3. R. Buser, “A systematic investigation of multicolor photometric systems. II. The transformations between the UBV and RGU systems.”, Astronomy and Astrophysics, 62, 425–430, 1978.
4. C.R. Cowley and G.C.L. Aikman, “Stellar abundances from line statistics”, The Astrophysical Journal, 242, 684–698, 1980.
5. M. Crézé, “Influence of the accuracy of stellar distances on the estimations of kinematical parameters from radial velocities”, Astronomy and Astrophysics, 9, 405–409, 1970.