X-ray timing beyond the Rossi X-ray Timing Explorer
X-ray redshifts with the International X-ray Observatory (IXO)
XMM-Newton observations of faint X-ray sources in globular clusters
World Space Observatory-Ultraviolet: ISSIS, the imaging instrument
What can the braking indices tell us about the nature of pulsars?
West Point : A History of the United States Military Academy
Versatile general elliptic open channel cross section
U.S. Magellan Spacecraft that Explored Venus 1980–2020
US Government and NASA Documents Related to Orbital Space Debris Mitigation
Use of Ketoprofenate and Xanthonate Photocages for Antiviral Release
Urban transport and the environment : an international perspective
Urban Development and Traffic Congestion: Jakarta Study during the Pandemic
Urban Consolidation and Logistics Pooling
Ultrasensitive Laser Analysis of Nanostructures: Theoretical Background and Experimental Performance
Transportation Hub as an Urban Magnet: A Case of Nagpur Metro