@article{PC2011MidpointSubdivision,
title = "Analyzing midpoint subdivision",
journal = "Computer Aided Geometric Design",
volume = "28",
number = "7",
pages = "407-419",
year = "2011",
note = "",
issn = "0167-8396",
doi = "10.1016/j.cagd.2011.08.002",
url = "http://www.sciencedirect.com/science/article/pii/S0167839611000902",
author = "Hartmut Prautzsch and Qi Chen",
keywords = "Midpoint subdivision",
keywords = "Smoothness at extraordinary points",
keywords = "Spectral properties of subdivision matrices",
keywords = "Characteristic map"
}