The Stationary Current-Voltage Characteristics of the Quantum Drift-Diffusion Model. - René Pinnau; Andreas Unterreiter (SIAM J. Numer. Anal., 1999)

A singular-perturbed two-phase Stefan problem. - Jens Struckmeier; Andreas Unterreiter (Appl. Math. Lett., 2001)

Discrete minimum and maximum principles for finite element approximations of non-monotone elliptic equations. - Ansgar Jüngel; Andreas Unterreiter (Numerische Mathematik, 2005)