A statistical study of pulsating stars. Third paper: The variable stars in Messier 5
Report on the observation of iron dust
A statistical study of pulsating stars.Sixth paper: Variables in miscellaneous clusters
Note On a Generalization of Schwarz' Lemma
Some results of a spectroscopic study of the atmosphere of 31 Cygni
A statistical study of pulsating stars.Seventh paper: The variables in M 2