R 13 and P 17. <TITLE lang=sl">R 13 in P 17
R 136 - source of excitation of the Tarantula Nebula.
R 136 - WN or O spectral characteristics
R and I light curves and comparison of B and V light curves of AK Herculis
R Aquarii
R Aquarii
R Aquarii
R Aquarii
R Aquarii
R Aquarii
R Aquarii
R Aquarii - an attempt at a unified model
R Aquarii - The large-scale optical nebula and the Mira variable position
R Aquarii Jet: Lorentz Force-Driven Parcel Model
R Aquarii: Evidence for a Two-sided Radio Jet and a Circumbinary SiO Maser
R Aquarii: First Detection of Circumstellar SiO Maser Proper Motions
R Arae in the Visual Region of the Spectrum
R associations. I - UBV photometry and MK spectroscopy of stars in southern reflection nebulae
R associations. VI - The reddening law in dust clouds and the nature of early-type emission stars in nebulosity from a study of five associations
R band polarimetry of Cygnus OB2: Implications for the magnetic field geometry and polarization models