@article {jue:00a,
 author = {B. J{\"u}ttler and M.L. Sampoli},
 title = {{H}ermite interpolation by piecewise polynomial surfaces with rational offsets},
 journal = {Comput. Aided Geom. Design},
 volume = {17},
 year = {2000},
 number = {4},
 pages = {361--385}
}