@INPROCEEDINGS{schuh-becker_10,
  author = {Schuh, W.-D. and Becker, S.},
  title = {Potential field and smoothness conditions},
  booktitle = {The apple of knowledge - In honour of Prof. N. Arabelos},
  year = {2010},
  editor = {Contadakis, M.E. and Kaltsikis, C. and Spatalas, S. and Tokmakidis,
	K. and Tziavos, I.N.},
  pages = {237 -- 250},
  organization = {University of Thessaloniki},
  publisher = {{AUTH} - Faculty of rural and surveying engineering},
  note = {ISBN 978-960-243-674-5}
}