Multi-scale Method for the Crack Problem in Microstructural Materials
R.H.W. Hoppe, S. Petrova, Computational Methods in Applied Mathematics 10 (2010) 69–86.

Applications of Primal-dual Interior Methods in Structural Optimization
R.H.W. Hoppe, S. Petrova, Computational Methods in Applied Mathematics 3 (2003) 159–176.