An 9-GHz silicon-on-insulator CMOS amplifier. - Wolfgang Barthel; Wolfram Budde (ICECS, 1998)

Hiding solutions in random satisfiability problems: A statistical mechanics approach - Wolfgang Barthel; Alexander K. Hartmann; Michele Leone; Federico Ricci-Tersenghi; Martin Weigt; Riccardo Zecchina (CoRR, 2001)

Solving satisfiability problems by fluctuations: The dynamics of stochastic local search algorithms - Wolfgang Barthel; Alexander K. Hartmann; Martin Weigt (CoRR, 2003)

Phase transition and finite-size scaling in the vertex-cover problem. - Alexander K. Hartmann; Wolfgang Barthel; Martin Weigt (Comput. Phys. Commun., 2005)