The following abbreviated references are used throughout these notes:

Bertaud & Floquet:
Ch. Bertaud and M. Floquet, A&AS, 16, 71, 1974.

Bright Star Catalogue:
Catalogue of Bright Stars (4th Revised Edition) by D. Hoffleit
(with the collaboration of C. Jaschek), Yale University Press, 1982
(References to this may also include the Supplement, cited in the
references following the Introduction to this Catalogue).

Curchod & Hauck:
A. Curchod & B. Hauck, A&AS, 38, 449, 1979.

Finding List:
A Finding List for Observers of Eclipsing Variables (5th Edition),
F.B. Wood, J.P. Oliver, D.R. Florkowski & R.H. Koch,
Publ. Univ. Pennsylvania Astron. Series, 12, 1980
(Publ. Dept. Astron. Univ. Florida, 1)
(Some references in unrevised notes are to the 4th Edition).

GCVS:
General Catalogue of Variable Stars, 4th Edition, 1985,
Ed.-in-Chief P.N. Kholopov, "Nauka" Publishing House, Moscow.
(The 3rd Edition, 1969, is also sometimes cited.)

IDS:
Index Catalogue of Double Stars, H.M. Jeffers,
W.H. van den Bos & F.M. Greeby, Lick Obs. Pub., 21, 1963.

Koch et al.:
A Catalogue of Graded Photometric Studies of Close Binaries,
R.H. Koch, M. Plavec & F.B. Wood, Publ. Univ. Pennsylvania
Astron. Series, 11, 1970.

Lucy & Sweeney:
L.B. Lucy & M.A. Sweeney, AJ, 76, 544, 1971.

Luyten:
W.J. Luyten, ApJ, 84, 85, 1936.

Petrie (I):
R.M. Petrie, Pub. DAO, 7, 205, 1939.

Petrie (II):
R.M. Petrie, Pub. DAO, 8, 319, 1950.

Sixth Catalogue:
A.H. Batten, Pub. DAO, 13, 119, 1967.

Seventh Catalogue:
A.H. Batten, J.M. Fletcher & P.J. Mann, Pub. DAO, 15, 121, 1978.

I.A.U. Symp. No. 30:
Determination of Radial Velocities and their Applications,
eds. A.H. Batten and J.F. Heard, Academic Press, 1967.

I.A.U. Symp. No. 73:
Structure and Evolution of Close Binary Systems,
eds. P. Eggleton, S. Mitton and J. Whelan, D. Reidel, 1976.

I.A.U. Symp. No. 88:
Close Binary Stars: Observations and Interpretation,
eds. M. Plavec, D.M. Popper and R.K. Ulrich, D. Reidel, 1980.

I.A.U. Symp. No. 98:
Be Stars, eds. M. Jaschek and H. Groth, D. Reidel, 1982.

I.A.U. Colloq. No. 53:
White Dwarfs and Variable Degenerate Stars,
eds. H.M. van Horn and V. Weidemann, Univ. of Rochester, 1979.

I.A.U. Colloq. No. 59:
Effects of Mass Loss on Stellar Evolution,
eds. C. Chiosi and R. Stalio, D. Reidel, 1981.

I.A.U. Colloq. No. 69:
Binary and Multiple Stars as Tracers of Stellar Evolution,
eds. Z. Kopal and J. Rahe, D. Reidel, 1967.

I.A.U. Colloq. No. 87:
Hydrogen Deficient Stars and Related Objects,
eds. K. Hunger, D. Schönberner and N. Kameswara Rao,
D. Reidel, 1986.

Photometric and Spectroscopic Binary Systems:
Photometric and Spectroscopic Binary Systems,
eds. E.B. Carling and Z. Kopal, D. Reidel, 1981.