Astronomical Journal 93 (1987): 669. 

 Lightman, A. P., and Zdziarski, A. A. "Pair Production and Compton Scattering 



in Compact Sources and Comparison to Observations of Active Galactic Nuclei." 



Astrophysical Journal 319 (1987): 643. 

 Lightman, A. P.; Zdziarski, A. A.; and Rees, M. J. "Effects of Electron-Positron Pair 



Opacity for Spherical Accretion onto Black Holes." Astrophysical Journal (Letters) 



315 (1987): L113. 

 Lin, F. J.; Chance, K. V.; and Traub, W. A. "Atomic Oxygen in the Lower 



Thermosphere." Journal of Geophysical Research 92 (1987): 4325. 

 Lorenzini, E. C. "Large, Tether-Connected, Two-Dimensional Structures in Low Earth 



Orbit." In Proceedings of the Pacific Basin International Symposium on Advances 



in Space Science Technology and Its Applications, ed. Ren Xin Min, p. 792. Beijing, 



China: Chinese Society of Astronautics, 1987. 

 . "A Three-Mass Tethered System for Micro-g/Variable-g Applications." 



Journal of Guidance, Control and Dynamics 10(3) (1987): 242. 

 . "Artificial Gravity Laboratory." In Tether Dynamics Simulation, NASA CP- 



2458, p. 141. Washington, D.C.: NASA, 1987. 

 Ma, C; Clark, T. A.; Ryan, J. W.; Herring, T. A.; Shapiro, I. I.; Corey, B. E.; 



Hinteregger, H. F.; Rogers, A. E. E.; Whitney, A. R.; Knight, C. A.; Lundqvist, 



G. L.; Shaffer, D. B.; Vandenberg, N. R.; Pigg, J. C; Schupler, B. R.; and Ronnang, 



B. O. "Radio-Source Positions from VLBI." Astronomical Journal 92 (1986): 1020. 

 Maccacaro, T.; Garilli, B.; and Mereghetti, S. "A Systematic Search for Long-Term 



Variability in a Large Sample of X-Ray Sources." Astronomical Journal 93 (1987): 



1484. 

 Maccacaro, T.; Gioia, I.; Schild, R.; Maccagni, D.; and Stocke, J. "X-Ray Emission as 



Evidence of Activity in Otherwise 'Normal' Galaxies." In Observational Evidence 



of Activity in Galaxies: Proceedings of IAU Symposium No. 121, eds. E. Ye. 



Khachikian, K. I. Fricke, and J. Melnick, p. 469. Dordrecht, Holland: D. Reidel 



Publishing Company, 1987. 

 Maccacaro, T.; Romaine, S.; and Schmitt, J. H. M. M. "Log N-Log S Slope 



Determination in Imaging X-Ray Astronomy." In Observational Cosmology, 



Proceedings of IAU Symposium No. 124, eds. A. Hewitt, G. Burbidge, and L. Z. 



Fang, p. 597. Dordrecht, Holland: D. Reidel Publishing Company, 1987. 

 Maccagni, D.; Barr, P.; Garilli, B.; Gioia, I. M.; Giommi, P.; Maccacaro, T.; and 



Schild, R. "X-Ray Selected BL Lac Objects: Time Variability and X-Ray Spectrum." 



In Quasars, Proceedings of IAU Symposium No. 119, eds. G. Swarup and V. K. 



Kapahi, p. 265. Dordrecht, Holland: D. Reidel Publishing Company, 1986. 

 Maccagni, D.; Gioia, I. M.; Maccacaro, T.; Schild, R.; and Stocke, J. "1E0116.3-0116: 



A Peculiar X-Ray Bright Early-Type Galaxy." Astrophysical Journal 316 (1987): 



132. 

 Maggio, A.; Sciortino, S.; Vaiana, G.; Majer, P.; Bookbinder, J.; Golub, L.; Harnden, 



F. R. Jr.; and Rosner, R. "Einstein Observatory Survey of X-Ray Emission from 



Solar-Type Stars: The Late F and G Dwarf Stars." Astrophysical Journal 315 (1987): 



687. 

 Malagoli, A.; Rosner, R.; and Bodo, G. "On the Thermal Instability of Galactic and 



Cluster Halos." Astrophysical Journal 319 (1987): 632. 



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