On the colorability of m-composed graphs. - R. Klein (Discret. Math., 1994)

On the colorability of graphs decomposable into degenerate graphs with specified degeneracy. - R. Klein; Johanan Schönheim (Australas. J Comb., 1995)

High-resolution spectroscopy of the 39K transitions at 770 nm and 13C2H2 saturated lines by a solid-state laser at 1.54 μm: toward an accurate frequency standard in the optical communication band. - Cesare Svelto; Gianluca Galzerano; Elio Bava; Fabio Ferrario; Ady Arie; R. Klein; M. A. Arbore; M. A. Fejer; Atsushi Onae; Marcello Marano (IEEE Trans. Instrum. Meas., 2002)