Numerical evaluation of the Lamb shift in hydrogen. - Ulrich D. Jentschura; Peter J. Mohr; Gerhard Soff (IEEE Trans. Instrum. Meas., 1999)

The role of fundamental constants in the International System of Units (SI): present and future. - Barry N. Taylor; Peter J. Mohr (IEEE Trans. Instrum. Meas., 2001)