U - B and B - V Colors of Black Bodies.

U and Th content in the Central Apennines continental crust: a contribution to the determination of the geo-neutrinos flux at LNGS

U B V Colors of RR Lyrae Stars in Globular Clusters

U B V Photometry of SCO XR-1

U B V R I Photometry of Stellar Structures throughout the Disk of the Barred Galaxy NGC 3367

U Cephei - A mass-transfer event. I

U Cephei - Effects of disk, hot spot, and stream on primary eclipse light curves

U Cephei a Mass-Transfer Event. II. Observations

U Cephei: an anomalous spectrographic result.

U Gem Stars

U Geminorum: a Test Case for Orbital Parameters Determination

U Geminorum: a test case for orbital parameters determination

U Sco 2010 outburst: observational evidence of an underlying ONeMg white dwarf

U solubility in the core of Earth

U V B Y β photoelectric photometric catalogue

U(N) and holomorphic methods for LQG and Spin Foams

U(N) Coherent States for Loop Quantum Gravity

U(N) invariant dynamics for a simplified Loop Quantum Gravity model

U(N) tools for Loop Quantum Gravity: The Return of the Spinor

U(N)-monopoles on Kerr black hole and its entropy