Order of selection:  Any Blackwell, LGWS, NWL, BNLP, CSW'. SK'. WST'. LCJ'. KDK', HF', BK, BKT'

BBMP Blackwell, D.E., Booth, A.J., Menon, S.L.R., and Petford, A.D. 1986.  MNRAS 220, 289-302.  
          includes 0.056 correction GBP

BK   Barchor H.A. and Kock, M. 1980.  J.Phys, B 13, 2497-    .
BK'       includes 0.056 correction GBP

BKT  Bell, G.D., Kalman, L.B. and Tubbs, E.F. 1975.  ApJ 200, 520-523.
BKT'      includes 0.056 correction GBP

BLNP Blackwell-Whitehead, R.J., Lundberg, H., Nave, G., Pickering, J,C,, Jones, H.R,A., 
          Lyubchik, Y., Pavlenko, Y.V., and Viti, S. 2006.  MNRAS 373, 1603-1609. 

BMP  Blackwell, D.E., Menon, S.L.R., and Petford, A.D. 1983.  MNRAS 204, 883-890.
          includes 0.056 correction GBP

BMPS Blackwell, D.E., Petford, A.D., Menon, S.L.R., and Shallis, M.J. 1982.  MNRAS 201, 611-617.
          includes 0.056 correction GBP

BPSL Blackwell, D.E., Petford, A.D., Shallis, M.J., and Legget, S. 1982.  MNRAS 199, 21-31.
          includes 0.056 correction GBP

CSW  Cardon, B.L., Smith, P.L., and Whaling, W. 1979.  Phys. Rev. A 20, 2411-2419.
CSW'      includes 0.056 correction GBP

GBP  Grevesse, N., Blackwell, D.E., and Petford, A.D. 1989.  Astron, Astrophys. 208.157-158.  correct earlier by +0.056.

HF   Holys, A. and Fuhr, J.R. 1980.  Astron. Astrophys. 90, 14-17. 
HF'       includes 0.056 correction GBP

KDK  Kuhne, M., Danzmann, K., and Kock, M. 1978, Astron. Astrophys. 64, 111-113.
KDK'      includes 0.056 correction GBP

KLEM Klemt. M. 1973.  Astron. Astrophys. 29, 419-423.

KOST Kostyk, R.I. 1982,  Soviet Astron, 26, 422-426.  

LCJ  Lotrian, J., Carious, J., and Johannin-Gilles, A. 1975.  JQSRT 15, 815-821.
LCJ'      includes 0.056 correction GBP and -0.04 correction MFW

LGWS Lawler, J.E., Guzman, A., Wood, M.P., Sneden, C., and Cowan, J.J.  2013.  Astrophys. Journ. Supp. 205, 11, 15pp.  

MFW  Martin, G.A., Fuhr, J.R., and Wiese, W.L. 1988. J. Phys. Chem. Ref. Data 17, Supp. 3, 512 pp.  Compilation of earlier work.

NWL  Nitz, D.E., Wickliffe, M.E, and Lawler, J.E. 1998.  ApJ Supp. 117, 313-317.

RVC  Roberts, J.R., Voigt, P.A., and Czernichowski, A. 1975.  Ap.J. 197, 791-798.
RVC'      includes 0.056 correction GBP and -0.07 correction by MFW

SK   Smith, P.L. and Kuhne, M. 1978.  Proc. Royal Soc. London , Ser. A 362, 263-   .
SK'       includes 0.056 correction GBP

WF   Weise, W.L. and Fuhr, J.R. 1975.  J. Phys. Chem. Ref. Data 4, 263-   .   Compilation of earlier work.

WST  Whaling, W., Scalo, J.M., and Testerman, L. 1977.  ApJ 212, 581-590.
WST'      includes 0.056 correction GBP