@article{mueller-2010,
    AUTHOR = {M{\"u}ller, Christian and Wallner, Johannes},
     TITLE = {Oriented mixed area and discrete minimal surfaces},
   JOURNAL = {Discrete Comput. Geom.},
  FJOURNAL = {Discrete \& Computational Geometry. An International Journal
              of Mathematics and Computer Science},
    VOLUME = {43},
      YEAR = {2010},
    NUMBER = {2},
     PAGES = {303--320},
       DOI = {10.1007/s00454-009-9198-7},
       URL = {http://www.geometrie.tuwien.ac.at/cmueller/mixedarea2010.pdf},
}