Item from Mathematical Reviews (American Mathematical Society)--access their stable url through the AMS database via an institutional library:

MR2032525 (2004j:05115) Chen, Zhi-Zhong; He, Xin Disk embeddings of planar graphs. Algorithmica 38 (2004), no. 4, 539--576. (Reviewer: Sandra L. Arlinghaus) 05C85 (05C10)