"An analysis of the classical Doppler Effect"[1] revisited
"An Appeal to the Friends of Astronomy."
"An Atlas of Representative Stellar Spectra." A Review
"An effective two dimensionality" cases bring a new hope to the Kaluza-Klein[like] theories
"An Era of Precision Astrophysics: Connecting Stars, Galaxies and the Universe," an Astro2010 Science White Paper
"An Event Of No Ordinary Interest" - The Inauguration of Albany's Dudley Observatory
"An Improved Astronomical Mirror"
"An SO(10) Solution to the Puzzle of Quark and Lepton Masses"
"An unexplained observation"
"Annular" ferroelectric domains in hexagonal manganites
"Anomalous" Optical GRB Afterglows are Common: Two z~4 Bursts, GRB 060206 and 060210
"Anomalous" U(1) Symmetry in Orbifold String Models
"Anomaly" in n=infinity Alday-Maldacena Duality for Wavy Circle
"Antiferromagnetism" in social relations and Bonabeau model
"Arcturus"
"Are Black Holes in Brans-Dicke Theory precisely the same as in General Relativity?"
"Are we done yet?"
"Artificial intelligence techniques in astronomy" (XIème Journée de Strasbourg)
"Artificial" superconductors. Superconducting phases in the MgxWO3 nanocomposite (x = 0.037; 0.125 - Tcx = 140; 280 K)
"Aschgraues" Licht der Venus.