@article{GDZPPN000363545,
title = {Planar Realizations of Nonlinear Davenport-Schinzel Sequences by Segments.},
journal = {Discrete \& computational geometry},
volume = {3},
year = {1988},
pages = {15-48},
zbl = {0636.68043},
url = {http://dml.mathdoc.fr/item/GDZPPN000363545}
}
Sharir, Micha; Wiernik, A. Planar Realizations of Nonlinear Davenport-Schinzel Sequences by Segments.. Discrete & computational geometry, Tome 3 (1988) pp. 15-48. http://gdmltest.u-ga.fr/item/GDZPPN000363545/