On possible extension of the unification scheme of radio galaxies and quasars
On possible influence of meteors on the earth atmosphere
On postmidnight low-latitude ionospheric irregularities during solar minimum: 1. Equatorial Atmosphere Radar and GPS-TEC observations in Indonesia
On Potential Spectroscopic Detection of Microfossils on Mars
On pressure measurement and seasonal pressure variations during the Phoenix mission
On privileged stationary observers in the Kerr-de Sitter geometry
On properties of (weakly) small groups
On properties of theories which preclude the existence of universal models
On pseudoparticle solutions in Yang's theory of gravity
On quantification with a finite universe
On Quasiminimal Excellent Classes
On rates and styles of late volcanism and rifting on Venus
On RCM-based projections of change in southern African summer climate
On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and Relativistic Field Theories
On Recognizable Tree Languages Beyond the Borel Hierarchy
On redshift and parallaxes in general relativistic kinematical world models.
On reflection of stationary sets in P_kappa lambda
On regular reduced products
On relationships between algebraic properties of groups and rings in some model-theoretic contexts
On resonance.