@article{GroetschelJuengerReinelt1989, author = {Martin Gr{\"o}tschel and Michael J{\"u}nger and Gerhard Reinelt}, title = {Via Minimization with Pin Preassignments and Layer Preference}, journal = {ZAMM - Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik}, volume = {69}, number = {11}, pages = {393 -- 399}, year = {1989}, }