Clusters of Galaxies and X-rays					Ay 124 
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Basic data and classification of Abell clusters:
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Abell, G. 1958, Ap.J.Suppl. 3, 211.  [The original catalog]
(The southern sky extension is the catalog by Abell, Corwin, and Olowin.)

Struble, M., and Rood, H. 1982, A.J. 87, 7.  [Morphology]
Struble, M., and Rood, H. 1987, Ap.J.Suppl. 63, 543.  [Redshifts and
    velocity dispersions; Huchra et al. have another compilation]
Struble, M., and Rood, H. 1987, Ap.J.Suppl. 63, 555.  [Morphology]
Struble, M., and Rood, H. 1987, Ap.J. 323, 468.  [Morphology, summary]


X-ray gas, cooling flows:
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Forman, W., and Jones, C. 1982, ARAA 20, 547. [**]

Mushotzky, R. 1984, Phys. Scripta T7, 157.

Jones, C., and Forman, W. 1984, Ap.J. 276, 38.

Fabian, A., Nulsen, P., and Canizares, C. 1984, Nature 310, 733. [*]

Stewart, G., Fabian, A., Jones, C., and Forman, W. 1984, Ap.J. 285, 1.

Forman, W., Jones, C., and Tucker, W. 1985, Ap.J. 293, 102.

Trinchieri, G., Fabbiano, G., and Canizares, C. 1986, Ap.J. 310, 637.

Fabbiano, G. 1986, PASP 98, 525.

Canizares, C. 1987, in IAU Symposium 117, "Dark Matter in the Universe", 
    eds. Kormendy and Knapp, p. 165. [*]

Fabian, A., and Thomas, P. 1987, in IAU Symposium 127, "Structure and 
    Dynamics of Elliptical Galaxies", ed. de Zeeuw, p. 155.

Jones, C., 1987, in "Nearly Normal Galaxies", ed. Faber, p. 109.  NY: Springer.

Fabian, A. 1988, in Saas-Fee course "Large Scale Structure in the Universe".
    Geneva Observatory (1988). [* Physics of the gas *]

Fabian, A. (ed.) 1988, NATO ASI workshop "Cooling Flows in Clusters and 
    Galaxies".  Dordrecht: Kluwer.  [* Many good reviews and papers *]

Sarazin, C. 1988, "X-ray Emission from Clusters of Galaxies", CUP.  Also in
    Rev. Mod. Phys. 58, 1 (1986).  [ <-- highly recommended ***]

Fabbiano, G. 1989, ARAA 27, 87. [**]

Many other journal and conference papers, especially by Sarazin (& White), 
W. Mathews, Renzini et al., etc.