Nicolaus Copernicus Astronomical Center, Toruń
Ministry of Science and Higher Education
The National Centre for Research and Development
Astronomical Observatory, University of Warsaw
Toruń Centre for Astronomy, Nicolaus Copernicus University
Astronomical Observatory of the Jagiellonian University
Institute of Astronomy University of Zielona Góra
Astronomical Observatory, Adam Mickiewicz University, Poznań
arXiv.org> Astrophysics astro-ph
SAO/NASA ADS Astronomy Query Form
Science & Scholarship in Poland (press service)
Science News Magazine of the Society for Science & the Public
Public transport in Warsaw - timetables and travel planner
Public transport in Warsaw (and other cities) - travel planner (with very good mobile version)
