|V_us| from Strange Hadronic Tau Data
|V_{cb}| from semileptonic B decays with two-loop QCD accuracy
|V_{cd}|, |V_{cs}| and f_{D_s} from (semi) leptonic $D_{(s)}$-decays : signals of New Physics ?
|V_{ub}| and Perturbative QCD Effects in the $B\toπ$ Transition Form Factor
|V_{ub}| from B-> pi e nu
|V_{ub}| From Semileptonic Decay and b -> s gamma
|V_{ub}| from the Spectrum of B->pi e nu
|V_{us}| from Lattice QCD
|ε|-Near-Zero materials in the near-infrared