Chandra Chekuri Anupam Gupta Ilan Newman Yuri Rabinovich Alistair Sinclair Embedding <i>k</i>-Outerplanar Graphs into <i>l</i> <sub>1</sub>. 119-136 2006 20 SIAM J. Discrete Math. 1 http://epubs.siam.org/SIDMA/volume-20/art_41737.html db/journals/siamdm/siamdm20.html#ChekuriGNRS06