43 GHz SiO masers in late-type stars with 86 GHz SiO masers in the Inner Galaxy

43 GHz-VLBI observations of 3C273 after a flux density outburst in 1988

433 Eros - comparison of lightcurve extrema from 1901-1931 with the present rotation state

44 NYSA - an iron-depleted asteroid

44 Tau: Discrimination between MS and post-MS models

44Ca and 49Ti Excesses in Circumstellar SiC Grains X from the Murchison Carbonaceous Chondrite

44Ti and 56Ni in core-collapse supernovae

44Ti nucleosynthesis gamma-ray lines with SIMBOL-X

44Ti radioactivity in young supernova remnants: Cas A and SN 1987A

45 MHz observations of six pulsars from the southern hemisphere.

47 Tuc: The Spectroscopic Versus CMD Age Discrepancy

47 Tucanae: a new laboratory for GeV millisecond pulsars

478-keV and 431-keV Line Emissions from Alpha-Alpha Reactions

4830 MILz Observations of the Formaldehyde Molecule in the Direction of Discrete Radio Sources

4850-MHz observations of a sample of radio sources identified with quasars.

49 Camelopardalis: an uncommon magnetic star

4979 Otawara: flyby target of the Rosetta mission

4C +12.50: A Superluminal Precessing Jet in the Recent Merger System IRAS 13451+1232

4C 02.27: what is inside a double-double radio quasar?

4C 29.47 - Quasi-periodic outbursts recorded by precessing jets?