M 31 Cepheids periods (Magnier+ 1997)
M 31 new OB associations (Magnier+ 1993)
M and S stars in LMC globular clusters
M dwarfs radial velocities (Zechmeister+, 2009)
M stars in Cepheus region (Kazarian+, 2001)
M Subdwarfs and the Population II Luminosity Function
M-class Asteroids: Soft Rock, Heavy Metal, Or None Of That Jazz?
M. Wolf's New Apparatus
M15 and the nature of X2127+119
M2 Component at Hyderabad
M2 ocean tide parameters and the deceleration of the moon's mean longitude from satellite orbit data
M2 ocean tide parameters and the deceleration of the moon's mean longitude from satellite orbit data
M3 on Chandrayaan-1: Strategy for Mineral Assessment of the Moon
M31 globular cluster system (Peacock+, 2010)
M31 globulars clusters ellipticities (Staneva+, 1996)
M31's Giant Southern Stream: Constraints on the Progenitor's Mass Phase, and Rotation
M31's Metal Rich Globular Clusters with HST/NICMOS
M4 - A Globular Cluster Hubble Deep Field: The Inner Halo Field Population
M4-18 - A young, cool planetary nebula
M67 CCD photometry (Boyle+, 1998)