C. Müller:
"Semi-Discrete Constant Mean Curvature Surfaces";
Mathematische Zeitschrift, 279 (2015), 1; 459 - 478.
http://dx.doi.org/10.1007/s00209-014-1377-4Electronic version of the publication:
http://www.geometrie.tuwien.ac.at/geom/ig/publications/2015/sdcmc2015/sdcmc.pdf