@InCollection{jue:05j,
author = {Z. \v{S}\'{\i}r and B. J\"uttler},
editor = {R.\ Martin and H.\ Bez and M.\ Sabin},
title = {Spatial {P}ythagorean Hodograph Quintics and the Approximation of Pipe Surfaces},
booktitle = {Mathematics of Surfaces XI},
publisher = {Springer},
year = {2005},
volume= {3604},
series = {Lecture Notes in Computer Science},
pages= {364--380}
}