The soft X-ray cosmosde Robert PetreMateriasX-ray astronomyCongressesROSAT (Artificial satellite)X-ray sources, GalacticAstronomie des rayons XCongrèsSources galactiques de rayons XROSAT (Satellite artificiel)ROSATEdiciones (2)
AA Comprehensive study of the x-ray structure and spectrum ofA Comprehensive study of the x-ray structure and spectrum of IC 433
TThe Case of John Barnes, Abraham Harrison, Robert Petre, andThe Case of John Barnes, Abraham Harrison, Robert Petre, and many others, the creditors of the Right Honourable Richard, Earl of Ranelagh, deceased
