C.13 Some Useful References

1.  Chatterjee, S., “Recipes for Low Frequency VLBI Phase-referencing and GPS Ionospheric Correction,” VLBA Scientific Memo No. 22, May 1999. https://library.nrao.edu/vlbas.html
2.  Ulvestad, Jim, “VLBA Calibration Transfer with External Telescopes, Version 1.1,” VLBA Operations Memo No. 34, July 30, 1999. https://library.nrao.edu/vlbao.shtml
3.  Ulvestad, Jim, “A Step-By-Step Recipe for VLBA Data Calibration in Version 1.3” VLBA Scientific Memo No. 25 (the basis of this appendix), January 2, 2001. https://library.nrao.edu/vlbas.html
4.  Ulvestad, Jim, Greisen, Eric W., Mioduszewski, Amy “ Procedures for Initial VLBA Data Reduction, Version 2.0”  Memo No. 105 April 26, 2001. https://www.aips.nrao.edu/aipsdoc.html # MEMOS
5.  Wrobel, J. M., Walker, R. C., Benson, J. M., & Beasley, A. J., “Strategies for Phase Referencing with the VLBA,” VLBA Scientific Memo No. 24, June 2000. https://library.nrao.edu/vlbas.html