@inproceedings{DraganCorneilKoehleretal., author = {Dragan, Feodor F. and Corneil, Derek G. and K{\"o}hler, Ekkehard and Xiang, Yang}, title = {Additive Spanners for Circle Graphs and Polygonal Graphs}, series = {Graph-Theoretic Concepts in Computer Science, 34th International Workshop, WG 2008, Durham, UK, June 30 - July 2, 2008}, booktitle = {Graph-Theoretic Concepts in Computer Science, 34th International Workshop, WG 2008, Durham, UK, June 30 - July 2, 2008}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {978-3-540-92247-6}, doi = {10.1007/978-3-540-92248-3_11}, pages = {110 -- 121}, language = {en} } @misc{DraganCorneilKoehleretal., author = {Dragan, Feodor F. and Corneil, Derek G. and K{\"o}hler, Ekkehard and Xiang, Yang}, title = {Collective additive tree spanners for circle graphs and polygonal graphs}, series = {Discrete Applied Mathematics}, volume = {160}, journal = {Discrete Applied Mathematics}, number = {12}, doi = {10.1016/j.dam.2012.03.036}, pages = {1717 -- 1729}, language = {en} }